Source Publication (e.g., journal title)
AROUND A CENTURY AGO, when indexes and abstracts first became widespread, it was revolutionary to provide descriptions of articles in the form of indexing and abstracting records. Indexes such as Readers' Guide to Periodical Literature, Index Medicus, and Chemical Abstracts noticeably increased the periodicals audience among students and researchers.
Tenopir, Carol, "Links and Bibliographic Databases" (2001). School of Information Sciences -- Faculty Publications and Other Works.