A simulation model for purchasing duplicate copies in a library
Journal of library automation
[June 1974]
Arms, W Y~Walter, T P
.
Abstract: Provision of duplicate copies in a library requires knowledge of the demand for each title. Since direct measurement of demand is difficult a simulation model has been developed to estimate the demand for a book from the number of times it has been loaned and hence to determine the number of copies required. Special attention has been given to accurate calibration of the model.
https://librarytechnology.org/document/2076/