BBN: description of the PLUM system as used for MUC-5. - Ralph M. Weischedel; Damaris M. Ayuso; Sean Boisen; Heidi Fox; Robert Ingria; Tomoyoshi Matsukawa; Constantine Papageorgiou; Dawn MacLaughlin; Masaichiro Kitagawa; Tsutomu Sakai; June Abe; Hiroto Hosihi; et al. (MUC, 1993)