Open access is a well-established way of publishing\ud
research results. There are many studies investigating\ud
the influence of open access on visibility of articles and\ud
citation counts. In this study, an overview and analysis\ud
of bibliometric studies analysing the extent and speed\ud
of citation were prepared, with special emphasis on the\ud
impact of open access, separately for certain scientific\ud
disciplines. We also highlight other factors that mainly\ud
affect the increased visibility and, consequently, the\ud
increase of the total citation count. We found that\ud
in the future it will be necessary to standardize the\ud
methodology of studying the effects of open access on\ud
citations, before the hypothesis of a positive correlation\ud
between the number of citations and open access can\ud
be fully confirmed or refuted
