title: [The unknown acquaintance, or the impact factor and others].
abstract: Nobody doubts the importance of the scientific performance's evaluation. At the same time its way divides the group of experts. The present study mostly deals with the models of citation-analysis based evaluation. The aim of the authors is to present the background of the best known tool - Impact factor - since, according to the authors' experience, to the many people use without knowing it well. In addition to the "non-official impact factor" and Euro-factor, the most promising index-number, h-index is presented. Finally new initiation - Index Copernicus Master List - is delineated, which is suitable to rank journals. Studying different indexes the authors make a proposal and complete the method of long standing for the evaluation of scientific performance.
authors.affiliation: Semmelweis Egyetem Központi Könyvtár Budapest Ulloi út 26. 1085.
authors.forename: Anna
authors.initials: A
authors.lastname: Berhidi
authors.forename: Edit
authors.initials: E
authors.lastname: Csajbók
authors.forename: Lívia
authors.initials: L
authors.lastname: Vasas
mesh_terms: D015706:Bibliometrics; D006801:Humans; D018156:Journalism, Medical; D010506:Periodicals as Topic / Q000706:statistics & numerical data*