C. J. van Rijsbergen. Information Retrieval: New Directions, Old Solutions. In Jennifer J. Kuehn, editor, Research and Development in Information Retrieval, Sixth Annual International ACM SIGIR Conference, National Library of Medicine, Bethesda, Maryland, USA, June 6-8, 1983. pages 264-265, ACM, 1983. [doi]
Abstract is missing.