Blagden, John. "Performance Assessment - The How and the What." In: Do We Really Need Libraries? Proceedings of the first joint Library Association Cranfield Institute of Technology Conference on Performance Measurement. John Blagden (ed.). Cranfield, 1983. See also Brophy, Peter. "Performance Measurement in Academic Libraries: A Polytechnic Perspective." British Journal of Academic Librarianship42: 108 (1989).
2.
For other definitions see Poll, Roswitha. "Leistungsmessungen in wissenschaftlichen Bibliotheken." Zeitschrift für Bibliothekswesen und Bibliographie32 (2): 95-98 (1992).
3.
Henty, Margaret. "Performance Indicators in Higher Education Libraries" British Journal of Academic Librarianship4: 179 (1989).
4.
Performance Indicators for University Libraries: A Practical Guide. Standing Conference of National and University Libraries: Advisory Committee on Performance Indicators. London: SCONUL, 1992.
5.
The Effective Academic Library: A Framework for Evaluating the Performance of UK Academic Libraries. A consultative report to the HEFCE, SHEFC, HEFCW and DENI by the Joint Funding Councils' Ad Hoc Group on Performance Indicators for Libraries. London, 1995 , 44 pp.
6.
Adams, Roy.Decision Support Systems and Performance Assessment in Acodemic Libraries . London: Bowker/Saur, 1993, p. 85.