A Software Environment for Research into Discourse Understanding Systems. - Ryôichi Sugimura; Kôiti Hasida; Kouji Akasaka; Kôzi Hatano; Yukihiro Kubo; Toshiyuki Okunishi (FGCS, 1988)

Logic Based Lexical Analyser LAX. - Ryôichi Sugimura; Kouji Akasaka; Yukihiro Kubo; Yuji Matsumoto 001 (LP, 1988)

Parallel Parsing System Based on Dependency Grammar. - Kouji Akasaka (Natural Language Understanding and Logic Programming Workshop, 1991)