HäkliEsko (1998) ‘Performance measures for national libraries?’In: HäkliEsko. Off the record: A selection of recent articles and books. Helsinki: Helsinki University Library, 1998, pp. 62–73.
2.
LineMaurice B. (1983) ‘Performance assessment at national library level’, In: BlagdenJohn (ed.) Do we really need libraries?Cranfield: Cranfield Press, 1983. Reprinted in: LineMaurice B.LineJoyce (eds.) National libraries 2: 1977–1985. London: Aslib, 1987, pp.126–145.
3.
PollRoswithaBoekhorstPeter te (1996) Measuring quality: International guidelines for performan-measurement in academic libraries. München [etc.]: K.G Saur, 1996. (IFLA Publications, 76).
4.
WardSuzanne (1995) Library performance indicators and library management tools. Luxembourg: European Commission, DG XIII-E3, 1995.