db/conf/cikm/ShinLYC93.html Dongwook Shin Hyongmuk Lim Yongun Yoon Key-Sun Choi HYKIS - An Information Retrieval System Based on a Hybrid Knowledge Base. 264-273 CIKM1993/P264.pdf 1993 conf/cikm/93 CIKM db/conf/cikm/cikm93.html#ShinLYC93 http://doi.acm.org/10.1145/170088.170144