Examines the cooperative efforts of the Western Library Network (WLN) and its members to maintain authority control over its central bibliographic database. The first section describes authority maintenance activities performed by WLN centrally, and the second describes the contribution of an individual member library--the Washington State…

Reports on a survey measuring the performance of a merging algorithm used to generate the now-defunct ULM (Union List of Monographs) file for ALEPH, Israel's research library network. Discusses automatic detection and merging of duplicate bibliographic records, problems created by lack of a standard for Hebrew spelling, and methods for measuring…

A distributed union catalog is a network of bibliographic systems that cooperate to enable their users to discover sites that hold copies of known items. Some participating systems will be traditional union catalogs, others will be single sites with comprehensive collections, and others will be local or regional resource sharing systems. A…

The virtual Canadian union catalog (vCuc) project is a project among Canadian libraries to use Z39.50 (an information protocol standard) for searching distributed individual library catalogs and union catalogs. This paper summarizes the major technical, vendor, bibliographic data, and administrative issues that must be resolved before the…