Unfilled interlending requests are usually not openly discussed as they reflect negatively on libraries that strive to render a reliable service. Thus it is not strange that there has been little or no published research on this topic. People have speculated on the reasons for unfilled requests, but these thoughts have never been verified. This presentation takes an in-depth look at unfilled requests.
Presented at the World Library and Information Congress (WLIC): 73rd IFLA General Conference and Council, 20 August 2007. Document Delivery and Resource Sharing Section. URL: http://www.ifla.org/IV/ifla73/index.htm