(invited paper) A new theoretical framework for information retrieval

C. J. van Rijsbergen
1986 Proceedings of the 9th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '86  
doi:10.1145/253168.253208 dblp:conf/sigir/Rijsbergen86 fatcat:ucul33337zefbidcyrnpvkkx6u