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).