Victor S Petrovichev

Publications

Citations

h-index

0000-0002-8391-2771

Found

Total publications

Total citations

Citations per publication

Average publications per year

Average coauthors

Publications years

2020-2024 (5 years)

h-index

i10-index

m-index

0.4

o-index

g-index

w-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

i10-index

The number of the author's publications that received at least 10 links each.

https://scholar.googleblog.com/2011/11/google-scholar-citations-open-to-all.html

m-index

The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.

https://harzing.com/publications/white-papers/reflections-on-the-h-index

o-index

The geometric mean of the h-index and the number of citations of the most cited article of the scientist.

https://arxiv.org/abs/1511.01545

g-index

For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g² citations.

https://doi.org/10.1007/s11192-006-0144-7

w-index

If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.

https://doi.org/10.1002/asi.21276

Top-100

Fields of science

	1
General Medicine	General Medicine, 1, 20% General Medicine 1 publication, 20%
Multidisciplinary	Multidisciplinary, 1, 20% Multidisciplinary 1 publication, 20%
Endocrinology, Diabetes and Metabolism	Endocrinology, Diabetes and Metabolism, 1, 20% Endocrinology, Diabetes and Metabolism 1 publication, 20%
History	History, 1, 20% History 1 publication, 20%
Family Practice	Family Practice, 1, 20% Family Practice 1 publication, 20%
	1

Journals

	1 2
Digital Diagnostics	Digital Diagnostics, 2, 40% Digital Diagnostics 2 publications, 40%
Terapevticheskii Arkhiv	Terapevticheskii Arkhiv, 1, 20% Terapevticheskii Arkhiv 1 publication, 20%
Science advances	Science advances, 1, 20% Science advances 1 publication, 20%
Diagnostic Radiology and Radiotherapy	Diagnostic Radiology and Radiotherapy, 1, 20% Diagnostic Radiology and Radiotherapy 1 publication, 20%
	1 2

Citing journals

	2 4 6 8 10 12
Journal not defined	Journal not defined, 11, 15.71% Journal not defined 11 citations, 15.71%
npj Microgravity	npj Microgravity, 6, 8.57% npj Microgravity 6 citations, 8.57%
Scientific Reports	Scientific Reports, 5, 7.14% Scientific Reports 5 citations, 7.14%
Frontiers in Neural Circuits	Frontiers in Neural Circuits, 4, 5.71% Frontiers in Neural Circuits 4 citations, 5.71%
Frontiers in Physiology	Frontiers in Physiology, 4, 5.71% Frontiers in Physiology 4 citations, 5.71%
NeuroImage	NeuroImage, 3, 4.29% NeuroImage 3 citations, 4.29%
Acta Astronautica	Acta Astronautica, 3, 4.29% Acta Astronautica 3 citations, 4.29%
Cerebral Cortex	Cerebral Cortex, 2, 2.86% Cerebral Cortex 2 citations, 2.86%
Human Physiology	Human Physiology, 2, 2.86% Human Physiology 2 citations, 2.86%
Life	Life, 2, 2.86% Life 2 citations, 2.86%
Физиология человека	Физиология человека, 2, 2.86% Физиология человека 2 citations, 2.86%
Proceedings of the National Academy of Sciences of the United States of America	Proceedings of the National Academy of Sciences of the United States of America, 1, 1.43% Proceedings of the National Academy of Sciences of the United States of America 1 citation, 1.43%
Frontiers in Neurology	Frontiers in Neurology, 1, 1.43% Frontiers in Neurology 1 citation, 1.43%
Open Astronomy	Open Astronomy, 1, 1.43% Open Astronomy 1 citation, 1.43%
Life Sciences in Space Research	Life Sciences in Space Research, 1, 1.43% Life Sciences in Space Research 1 citation, 1.43%
Quarterly Journal of Experimental Psychology	Quarterly Journal of Experimental Psychology, 1, 1.43% Quarterly Journal of Experimental Psychology 1 citation, 1.43%
Journal of Environmental Psychology	Journal of Environmental Psychology, 1, 1.43% Journal of Environmental Psychology 1 citation, 1.43%
Communications Biology	Communications Biology, 1, 1.43% Communications Biology 1 citation, 1.43%
Cognitive Neuropsychology	Cognitive Neuropsychology, 1, 1.43% Cognitive Neuropsychology 1 citation, 1.43%
The Lancet Neurology	The Lancet Neurology, 1, 1.43% The Lancet Neurology 1 citation, 1.43%
Cognitive Processing	Cognitive Processing, 1, 1.43% Cognitive Processing 1 citation, 1.43%
International Journal of Molecular Sciences	International Journal of Molecular Sciences, 1, 1.43% International Journal of Molecular Sciences 1 citation, 1.43%
JAMA Ophthalmology	JAMA Ophthalmology, 1, 1.43% JAMA Ophthalmology 1 citation, 1.43%
JAMA Neurology	JAMA Neurology, 1, 1.43% JAMA Neurology 1 citation, 1.43%
Frontiers in Neuroscience	Frontiers in Neuroscience, 1, 1.43% Frontiers in Neuroscience 1 citation, 1.43%
Cell	Cell, 1, 1.43% Cell 1 citation, 1.43%
Frontiers in Astronomy and Space Sciences	Frontiers in Astronomy and Space Sciences, 1, 1.43% Frontiers in Astronomy and Space Sciences 1 citation, 1.43%
Brain Imaging and Behavior	Brain Imaging and Behavior, 1, 1.43% Brain Imaging and Behavior 1 citation, 1.43%
Human Brain Mapping	Human Brain Mapping, 1, 1.43% Human Brain Mapping 1 citation, 1.43%
American Journal of Human Biology	American Journal of Human Biology, 1, 1.43% American Journal of Human Biology 1 citation, 1.43%
I P Pavlov Russian Medical Biological Herald	I P Pavlov Russian Medical Biological Herald, 1, 1.43% I P Pavlov Russian Medical Biological Herald 1 citation, 1.43%
Frontiers in Drug Delivery	Frontiers in Drug Delivery, 1, 1.43% Frontiers in Drug Delivery 1 citation, 1.43%
Russian Journal of Occupational Health and Industrial Ecology (Meditsina truda i promyshlennaya ekologiya)	Russian Journal of Occupational Health and Industrial Ecology (Meditsina truda i promyshlennaya ekologiya), 1, 1.43% Russian Journal of Occupational Health and Industrial Ecology (Meditsina truda i promyshlennaya ekologiya) 1 citation, 1.43%
Medical Technologies. Assessment and Choice	Medical Technologies. Assessment and Choice, 1, 1.43% Medical Technologies. Assessment and Choice 1 citation, 1.43%
Digital Diagnostics	Digital Diagnostics, 1, 1.43% Digital Diagnostics 1 citation, 1.43%
Chinese Journal of Electrical Engineering	Chinese Journal of Electrical Engineering, 1, 1.43% Chinese Journal of Electrical Engineering 1 citation, 1.43%
Flugmedizin · Tropenmedizin · Reisemedizin - FTR	Flugmedizin · Tropenmedizin · Reisemedizin - FTR, 1, 1.43% Flugmedizin · Tropenmedizin · Reisemedizin - FTR 1 citation, 1.43%

	2 4 6 8 10 12

Publishers

	1 2
Eco-Vector LLC	Eco-Vector LLC, 2, 40% Eco-Vector LLC 2 publications, 40%
American Association for the Advancement of Science (AAAS)	American Association for the Advancement of Science (AAAS), 1, 20% American Association for the Advancement of Science (AAAS) 1 publication, 20%
Baltic Medical Education Center	Baltic Medical Education Center, 1, 20% Baltic Medical Education Center 1 publication, 20%
Consilium Medicum	Consilium Medicum, 1, 20% Consilium Medicum 1 publication, 20%
	1 2

Organizations from articles

	1 2
Lomonosov Moscow State University	Lomonosov Moscow State University, 2, 14.29% Lomonosov Moscow State University 2 publications, 14.29%
Organization not defined	Organization not defined, 1, 7.14% Organization not defined 1 publication, 7.14%
National Research University Higher School of Economics	National Research University Higher School of Economics, 1, 7.14% National Research University Higher School of Economics 1 publication, 7.14%
Russian University of Medicine	Russian University of Medicine, 1, 7.14% Russian University of Medicine 1 publication, 7.14%
Institute for Biomedical Problems of the Russian Academy of Sciences	Institute for Biomedical Problems of the Russian Academy of Sciences, 1, 7.14% Institute for Biomedical Problems of the Russian Academy of Sciences 1 publication, 7.14%
Pirogov Russian National Research Medical University	Pirogov Russian National Research Medical University, 1, 7.14% Pirogov Russian National Research Medical University 1 publication, 7.14%
Katholieke Universiteit Leuven	Katholieke Universiteit Leuven, 1, 7.14% Katholieke Universiteit Leuven 1 publication, 7.14%
University of Liège	University of Liège, 1, 7.14% University of Liège 1 publication, 7.14%
University of Antwerp	University of Antwerp, 1, 7.14% University of Antwerp 1 publication, 7.14%
Interuniversity Microelectronics Centre	Interuniversity Microelectronics Centre, 1, 7.14% Interuniversity Microelectronics Centre 1 publication, 7.14%
University of Western Australia	University of Western Australia, 1, 7.14% University of Western Australia 1 publication, 7.14%
Royal Perth Hospital	Royal Perth Hospital, 1, 7.14% Royal Perth Hospital 1 publication, 7.14%
Ludwig Maximilian University of Munich	Ludwig Maximilian University of Munich, 1, 7.14% Ludwig Maximilian University of Munich 1 publication, 7.14%
	1 2

Countries from articles

	1 2 3 4 5
Russia	Russia, 5, 45.45% Russia 5 publications, 45.45%
Country not defined	Country not defined, 3, 27.27% Country not defined 3 publications, 27.27%
Germany	Germany, 1, 9.09% Germany 1 publication, 9.09%
Australia	Australia, 1, 9.09% Australia 1 publication, 9.09%
Belgium	Belgium, 1, 9.09% Belgium 1 publication, 9.09%
	1 2 3 4 5

Citing organizations

	5 10 15 20 25
Organization not defined	Organization not defined, 23, 12.43% Organization not defined 23 citations, 12.43%
University of Florida	University of Florida, 9, 4.86% University of Florida 9 citations, 4.86%
Institute for Biomedical Problems of the Russian Academy of Sciences	Institute for Biomedical Problems of the Russian Academy of Sciences, 8, 4.32% Institute for Biomedical Problems of the Russian Academy of Sciences 8 citations, 4.32%
University of Antwerp	University of Antwerp, 6, 3.24% University of Antwerp 6 citations, 3.24%
Ludwig Maximilian University of Munich	Ludwig Maximilian University of Munich, 6, 3.24% Ludwig Maximilian University of Munich 6 citations, 3.24%
University of Texas Health Science Center at Houston	University of Texas Health Science Center at Houston, 6, 3.24% University of Texas Health Science Center at Houston 6 citations, 3.24%
University of Michigan	University of Michigan, 5, 2.7% University of Michigan 5 citations, 2.7%
University of Pennsylvania	University of Pennsylvania, 5, 2.7% University of Pennsylvania 5 citations, 2.7%
Interuniversity Microelectronics Centre	Interuniversity Microelectronics Centre, 4, 2.16% Interuniversity Microelectronics Centre 4 citations, 2.16%
German Aerospace Center	German Aerospace Center, 4, 2.16% German Aerospace Center 4 citations, 2.16%
Lomonosov Moscow State University	Lomonosov Moscow State University, 3, 1.62% Lomonosov Moscow State University 3 citations, 1.62%
National Research University Higher School of Economics	National Research University Higher School of Economics, 3, 1.62% National Research University Higher School of Economics 3 citations, 1.62%
Katholieke Universiteit Leuven	Katholieke Universiteit Leuven, 3, 1.62% Katholieke Universiteit Leuven 3 citations, 1.62%
University of Liège	University of Liège, 3, 1.62% University of Liège 3 citations, 1.62%
University of Southern California	University of Southern California, 3, 1.62% University of Southern California 3 citations, 1.62%
Royal Perth Hospital	Royal Perth Hospital, 3, 1.62% Royal Perth Hospital 3 citations, 1.62%
Harvard University	Harvard University, 3, 1.62% Harvard University 3 citations, 1.62%
Institute for Information Transmission Problems of the Russian Academy of Sciences	Institute for Information Transmission Problems of the Russian Academy of Sciences, 2, 1.08% Institute for Information Transmission Problems of the Russian Academy of Sciences 2 citations, 1.08%
Humboldt University of Berlin	Humboldt University of Berlin, 2, 1.08% Humboldt University of Berlin 2 citations, 1.08%
Free University of Berlin	Free University of Berlin, 2, 1.08% Free University of Berlin 2 citations, 1.08%
Johns Hopkins University	Johns Hopkins University, 2, 1.08% Johns Hopkins University 2 citations, 1.08%
Air Force Medical University	Air Force Medical University, 2, 1.08% Air Force Medical University 2 citations, 1.08%
California Institute of Technology	California Institute of Technology, 2, 1.08% California Institute of Technology 2 citations, 1.08%
University of Western Australia	University of Western Australia, 2, 1.08% University of Western Australia 2 citations, 1.08%
Brigham and Women's Hospital	Brigham and Women's Hospital, 2, 1.08% Brigham and Women's Hospital 2 citations, 1.08%
Charité - Universitätsmedizin Berlin	Charité - Universitätsmedizin Berlin, 2, 1.08% Charité - Universitätsmedizin Berlin 2 citations, 1.08%
Jet Propulsion Laboratory	Jet Propulsion Laboratory, 2, 1.08% Jet Propulsion Laboratory 2 citations, 1.08%
Japan Aerospace Exploration Agency	Japan Aerospace Exploration Agency, 2, 1.08% Japan Aerospace Exploration Agency 2 citations, 1.08%
University of Texas Medical Branch	University of Texas Medical Branch, 2, 1.08% University of Texas Medical Branch 2 citations, 1.08%
Sechenov First Moscow State Medical University	Sechenov First Moscow State Medical University, 1, 0.54% Sechenov First Moscow State Medical University 1 citation, 0.54%
Saratov State Medical University named after V. I. Razumovsky	Saratov State Medical University named after V. I. Razumovsky, 1, 0.54% Saratov State Medical University named after V. I. Razumovsky 1 citation, 0.54%
Pirogov Russian National Research Medical University	Pirogov Russian National Research Medical University, 1, 0.54% Pirogov Russian National Research Medical University 1 citation, 0.54%
Azerbaijan Medical University	Azerbaijan Medical University, 1, 0.54% Azerbaijan Medical University 1 citation, 0.54%
Tehran University of Medical Sciences	Tehran University of Medical Sciences, 1, 0.54% Tehran University of Medical Sciences 1 citation, 0.54%
Tabriz University of Medical Sciences	Tabriz University of Medical Sciences, 1, 0.54% Tabriz University of Medical Sciences 1 citation, 0.54%
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department	Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department, 1, 0.54% Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department 1 citation, 0.54%
École supérieure de physique et de chimie industrielles de la Ville de Paris	École supérieure de physique et de chimie industrielles de la Ville de Paris, 1, 0.54% École supérieure de physique et de chimie industrielles de la Ville de Paris 1 citation, 0.54%
Lund University	Lund University, 1, 0.54% Lund University 1 citation, 0.54%
University of Bordeaux	University of Bordeaux, 1, 0.54% University of Bordeaux 1 citation, 0.54%
Heidelberg University	Heidelberg University, 1, 0.54% Heidelberg University 1 citation, 0.54%
University of Zurich	University of Zurich, 1, 0.54% University of Zurich 1 citation, 0.54%
Università Cattolica del Sacro Cuore	Università Cattolica del Sacro Cuore, 1, 0.54% Università Cattolica del Sacro Cuore 1 citation, 0.54%
Polytechnic University of Turin	Polytechnic University of Turin, 1, 0.54% Polytechnic University of Turin 1 citation, 0.54%
University of Padua	University of Padua, 1, 0.54% University of Padua 1 citation, 0.54%
Royal Holloway University of London	Royal Holloway University of London, 1, 0.54% Royal Holloway University of London 1 citation, 0.54%
Sorbonne University	Sorbonne University, 1, 0.54% Sorbonne University 1 citation, 0.54%
Tokyo University of Science	Tokyo University of Science, 1, 0.54% Tokyo University of Science 1 citation, 0.54%
Lawrence Berkeley National Laboratory	Lawrence Berkeley National Laboratory, 1, 0.54% Lawrence Berkeley National Laboratory 1 citation, 0.54%
Drexel University	Drexel University, 1, 0.54% Drexel University 1 citation, 0.54%
Cornell University	Cornell University, 1, 0.54% Cornell University 1 citation, 0.54%
University of Tsukuba	University of Tsukuba, 1, 0.54% University of Tsukuba 1 citation, 0.54%
Universite Libre de Bruxelles	Universite Libre de Bruxelles, 1, 0.54% Universite Libre de Bruxelles 1 citation, 0.54%
University of Rome Tor Vergata	University of Rome Tor Vergata, 1, 0.54% University of Rome Tor Vergata 1 citation, 0.54%
National Institute for Nuclear Physics	National Institute for Nuclear Physics, 1, 0.54% National Institute for Nuclear Physics 1 citation, 0.54%
University of Siena	University of Siena, 1, 0.54% University of Siena 1 citation, 0.54%
Alfred Health	Alfred Health, 1, 0.54% Alfred Health 1 citation, 0.54%
Charles Darwin University	Charles Darwin University, 1, 0.54% Charles Darwin University 1 citation, 0.54%
Stanford University	Stanford University, 1, 0.54% Stanford University 1 citation, 0.54%
Columbia University	Columbia University, 1, 0.54% Columbia University 1 citation, 0.54%
Tokyo Women's Medical University	Tokyo Women's Medical University, 1, 0.54% Tokyo Women's Medical University 1 citation, 0.54%
Northwestern University	Northwestern University, 1, 0.54% Northwestern University 1 citation, 0.54%
Colorado State University	Colorado State University, 1, 0.54% Colorado State University 1 citation, 0.54%
Oregon Health & Science University	Oregon Health & Science University, 1, 0.54% Oregon Health & Science University 1 citation, 0.54%
Broad Institute of MIT and Harvard	Broad Institute of MIT and Harvard, 1, 0.54% Broad Institute of MIT and Harvard 1 citation, 0.54%
University of Washington	University of Washington, 1, 0.54% University of Washington 1 citation, 0.54%
Massachusetts General Hospital	Massachusetts General Hospital, 1, 0.54% Massachusetts General Hospital 1 citation, 0.54%
University of California, San Diego	University of California, San Diego, 1, 0.54% University of California, San Diego 1 citation, 0.54%
Hangzhou Normal University	Hangzhou Normal University, 1, 0.54% Hangzhou Normal University 1 citation, 0.54%
Tohoku University	Tohoku University, 1, 0.54% Tohoku University 1 citation, 0.54%
HUN-REN Research Centre for Natural Sciences	HUN-REN Research Centre for Natural Sciences, 1, 0.54% HUN-REN Research Centre for Natural Sciences 1 citation, 0.54%
University of Mons	University of Mons, 1, 0.54% University of Mons 1 citation, 0.54%
Max Planck Institute for Human Development	Max Planck Institute for Human Development, 1, 0.54% Max Planck Institute for Human Development 1 citation, 0.54%
German Sport University Cologne	German Sport University Cologne, 1, 0.54% German Sport University Cologne 1 citation, 0.54%
University of Science and Technology of China	University of Science and Technology of China, 1, 0.54% University of Science and Technology of China 1 citation, 0.54%
Baylor College of Medicine	Baylor College of Medicine, 1, 0.54% Baylor College of Medicine 1 citation, 0.54%
Rockefeller University	Rockefeller University, 1, 0.54% Rockefeller University 1 citation, 0.54%
University of Waterloo	University of Waterloo, 1, 0.54% University of Waterloo 1 citation, 0.54%
Institute of Physics of the Czech Academy of Sciences	Institute of Physics of the Czech Academy of Sciences, 1, 0.54% Institute of Physics of the Czech Academy of Sciences 1 citation, 0.54%
University of Minnesota	University of Minnesota, 1, 0.54% University of Minnesota 1 citation, 0.54%
University Medical Center Hamburg-Eppendorf	University Medical Center Hamburg-Eppendorf, 1, 0.54% University Medical Center Hamburg-Eppendorf 1 citation, 0.54%
Otto-von-Guericke University Magdeburg	Otto-von-Guericke University Magdeburg, 1, 0.54% Otto-von-Guericke University Magdeburg 1 citation, 0.54%
Carl von Ossietzky University of Oldenburg	Carl von Ossietzky University of Oldenburg, 1, 0.54% Carl von Ossietzky University of Oldenburg 1 citation, 0.54%
University of Natural Resources and Life Sciences, Vienna	University of Natural Resources and Life Sciences, Vienna, 1, 0.54% University of Natural Resources and Life Sciences, Vienna 1 citation, 0.54%
Kiel University	Kiel University, 1, 0.54% Kiel University 1 citation, 0.54%
University of Wisconsin–Madison	University of Wisconsin–Madison, 1, 0.54% University of Wisconsin–Madison 1 citation, 0.54%
University of Texas MD Anderson Cancer Center	University of Texas MD Anderson Cancer Center, 1, 0.54% University of Texas MD Anderson Cancer Center 1 citation, 0.54%
Université Marie et Louis Pasteur	Université Marie et Louis Pasteur, 1, 0.54% Université Marie et Louis Pasteur 1 citation, 0.54%
Université Laval	Université Laval, 1, 0.54% Université Laval 1 citation, 0.54%
University of Calgary	University of Calgary, 1, 0.54% University of Calgary 1 citation, 0.54%
Children's Hospital of Philadelphia	Children's Hospital of Philadelphia, 1, 0.54% Children's Hospital of Philadelphia 1 citation, 0.54%
Children's Hospital Los Angeles	Children's Hospital Los Angeles, 1, 0.54% Children's Hospital Los Angeles 1 citation, 0.54%
University of Utah	University of Utah, 1, 0.54% University of Utah 1 citation, 0.54%
Universities Space Research Association	Universities Space Research Association, 1, 0.54% Universities Space Research Association 1 citation, 0.54%

	5 10 15 20 25

Citing countries

	5 10 15 20 25 30 35
USA	USA, 31, 25.62% USA 31 citations, 25.62%
Country not defined	Country not defined, 16, 13.22% Country not defined 16 citations, 13.22%
Russia	Russia, 14, 11.57% Russia 14 citations, 11.57%
Germany	Germany, 14, 11.57% Germany 14 citations, 11.57%
Belgium	Belgium, 7, 5.79% Belgium 7 citations, 5.79%
France	France, 5, 4.13% France 5 citations, 4.13%
China	China, 5, 4.13% China 5 citations, 4.13%
Italy	Italy, 5, 4.13% Italy 5 citations, 4.13%
Australia	Australia, 4, 3.31% Australia 4 citations, 3.31%
Canada	Canada, 3, 2.48% Canada 3 citations, 2.48%
Netherlands	Netherlands, 3, 2.48% Netherlands 3 citations, 2.48%
United Kingdom	United Kingdom, 2, 1.65% United Kingdom 2 citations, 1.65%
Switzerland	Switzerland, 2, 1.65% Switzerland 2 citations, 1.65%
Japan	Japan, 2, 1.65% Japan 2 citations, 1.65%
Austria	Austria, 1, 0.83% Austria 1 citation, 0.83%
Azerbaijan	Azerbaijan, 1, 0.83% Azerbaijan 1 citation, 0.83%
Hungary	Hungary, 1, 0.83% Hungary 1 citation, 0.83%
Israel	Israel, 1, 0.83% Israel 1 citation, 0.83%
Iran	Iran, 1, 0.83% Iran 1 citation, 0.83%
Poland	Poland, 1, 0.83% Poland 1 citation, 0.83%
Czech Republic	Czech Republic, 1, 0.83% Czech Republic 1 citation, 0.83%
Sweden	Sweden, 1, 0.83% Sweden 1 citation, 0.83%
	5 10 15 20 25 30 35

We do not take into account publications without a DOI.
Statistics recalculated daily.