Presents list of sources providing information about reference uses of databases emphasizing those which are commercially available and issues and developments in online database searching. Citations to introductory textbooks, other useful monographs, journal articles, bibliographies, periodicals, directories, professional groups, conferences,…

After discussing the nature of timeliness and its importance to the user of information systems, this document examines the factors which affect timeliness in three subsystems of the scientific communication system. The first subsystem moves a document from the existence of new knowledge to the point of entry into an information system; the second…