@article{article, title = {{Google Scholar, Web of Science, and Scopus: A systematic comparison of citations in 252 subject categories}}, publisher = {{Elsevier BV}}, url = {{http://dx.doi.org/10.1016/j.joi.2018.09.002 }}, year = {{2018}}, month = {{11}}, author = {{Martín-Martín A and Orduna-Malea E and Thelwall M and Delgado López-Cózar E}}, doi = {{10.1016/j.joi.2018.09.002}}, volume = {{12}}, journal = {{Journal of Informetrics}}, issue = {{4}}, pages = {{1160-1177}}, note = {{Accessed on 2024/09/19}}}