Owen de Kretser Alistair Moffat Justin Zobel <i>Teraphim</i>: An Engine for Distributed Information Retrieval. 384 1998 conf/sigir/98 SIGIR SIGIR1998/P384.pdf db/conf/sigir/KretserMZ98.html db/conf/sigir/sigir98.html#KretserMZ98