HOLWG, DoD, Jan 1977, rEvisEd Jul 1977. Fourth of thE sEriEs of DoD rEquirEmEnts that lEd to Ada. "DEpartmEnt of DEfEnsE REquirEmEnts for High OrdEr ComputEr Programming LanguagEs", SIGPLAN NoticEs 12(12):39-54 (DEc 1977). "REvisEd Ironman REquirEmEnts for High OrdEr ComputEr Programming LanguagEs", US DEpt of DEfEnsE, Jul 1977. (SEE Strawman, WoodEnman, Tinman, StEElman).