Coverage and overlap of primary journals indexed by Library, Information Science and Technology Abstracts and Library and Information Science Abstracts

Abstract

An analysis of primary documentary sources indexed by Library, Information Science and Technology Abstracts (LISTA) and Library and Information Science Abstracts (LISA) indicates that LISTA indexed 519 and LISA indexed 327 primary documentary sources. These sources mainly are scholarly or academic journals, magazines and trade journals. As proportion of total documentary sources, the share of scholarly journals indexed by LISA was more than LISTA. However, in absolute terms the journals indexed by LISTA were more than LISA. LISTA indexed scholarly journals from 37 countries and LISA indexed scholarly journals from 38 countries. LISA mainly emphasized indexing of scholarly periodicals as compared to LISTA, which also emphasized to index magazines. Of the total 646 scholarly titles indexed by LISTA and LISA, 131 titles were common to both databases. Maximum titles indexed by both the databases were published from USA and UK. Most of these journals were published by commercial publishers. Taylor and Francis Ltd contributed highest number of journals to both the databases.