Michael Lesk Douglas R. Cutting Jan O. Pedersen Terry Noreault Matthew B. Koll Real Life Information Retrieval: Commercial Search Engines (Panel). 333 1997 conf/sigir/97 SIGIR SIGIR1997/P333.pdf db/conf/sigir/LeskCPNK97.html db/conf/sigir/sigir97.html#LeskCPNK97