D. C. Popma

Atmospheric-control systems for extended- duration manned space flight

D. C. Popma, 1967 .

Space vehicle water reclamation systems.

D. C. Popma, V. G. Collins, 1965 .

SPACECRAFT LIFE SUPPORT SYSTEMS

D. C. Popma, John A. Hogan, Luna Mars, 1963 .

Environmental control system development for manned spacecraft 1960-1973

D. C. Popma, 1974 .

Life support for long-duration missions

D. C. Popma, 1963 .