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Burell, Quentin – Journal of Documentation, 1980
Explains some observed library circulation frequency distributions through use of a simple stochastic model for the borrowing of books from a library collection. Parameters of the model are described and the model is applied to circulation data from three academic libraries. (Author/SW)
Descriptors: Academic Libraries, Bibliographies, Foreign Countries, Library Circulation

Collis, Betty A.; And Others – 1988
Based on the concept of a mathematical manifold, the model developed for this study was designed to measure and provide insights into the interaction of gender and access to computers among Canadian adolescents, as well as the multiple situational and personal variables which can constrain or facilitate computer access for the adolescent. The…
Descriptors: Access to Computers, Adolescents, Equal Education, Foreign Countries