title: [Equally or equitably? Author roles and co-author shares in scientific publication].
abstract: In the last decades the share of co-authored and, particularly, multi-authored papers has increased immensely. The paper deals with the causes and consequences of this phenomenon, specifically with those connected with scientometric analyses. Possibilities for fractional count of publications and citations, as well as problems of interpreting h-index and self-citation in case of multi-authored papers are focused upon.
authors.affiliation: Tudománypolitikai és Tudományelemzési Osztály, MTA Könyvtár és Információs Központ Budapest.
authors.forename: András
authors.initials: A
authors.lastname: Schubert
mesh_terms: D001319:Authorship / Q000592:standards*; D015706:Bibliometrics; D006801:Humans; D055811:Journal Impact Factor; D011642:Publications / Q000592:standards / Q000639:trends*; D058028:Research Report / Q000639:trends*
keywords: authorship; co-authorship; scientometrics; szerzőség; tudománymetria; társszerzőség