Thesaurus Principles and Practice - Discusses the basics of thesaurus construction and management. From Willpower Information Management Consultants. - http://www.willpower.demon.co.uk/thesprin.htm
Zthes: a Z39.50 Profile for Thesaurus Navigation - Describes an abstract model for representing and searching thesauri, specifying how the model may be implemented. Uses of Z39.50 protocol and XML DTD for thesauri are described. - http://zthes.z3950.org/