title: [Case and studies].
abstract: Case studies and case reports form an important and ever growing part of scientific and scholarly literature. The paper deals with the share and citation rate of these publication types on different fields of research. In general, evidence seems to support the opinion that an excessive number of such publications may negatively influence the impact factor of the journal. In the literature of scientometrics, case studies (at least the presence of the term "case study" in the titles of the papers) have a moderate share, but their citation rate is practically equal to that of other publication types.
authors.affiliation: Tudománypolitikai és Tudományelemzési Osztály, Magyar Tudományos Akadémia, Könyvtár és Információs Központ Budapest.
authors.forename: András
authors.initials: A
authors.lastname: Schubert
mesh_terms: D015706:Bibliometrics; D006801:Humans; D055811:Journal Impact Factor; D010506:Periodicals as Topic / Q000592:standards* / Q000706:statistics & numerical data; D011642:Publications / Q000706:statistics & numerical data; D012106:Research / Q000706:statistics & numerical data*
keywords: case reports; case studies; esetismertetések; esettanulmányok; scientometrics; tudománymetria