@inproceedings{DBLP:conf/sigir/RobertsonMC82,
author = {Stephen E. Robertson and
M. E. Maron and
William S. Cooper},
title = {The Unified Probabilistic Model for IR},
booktitle = {SIGIR},
year = {1982},
pages = {108-117},
ee = {http://dx.doi.org/10.1007/BFb0036342},
bibsource = {DBLP, http://dblp.uni-trier.de}
}