1981-11-09 /6.1_emacs_manuals_1er/01/manuals/ddt42.doc 1981-11-09 /BB-4172H-BM/01/4-1-documentation/ddt42.doc 1981-11-09 /BB-H138C-BM/01/5-documentation/ddt42.doc 1981-11-09 /BB-H138D-BM/01/5-1-documentation/ddt42.doc 1981-11-09 /bb-d868e-bm_tops20_v41_2020_dist_1of2/01/4-1-documentation/ddt42.doc