TY  - RPRT
TI  - Program PDP003, CTRL2D
AU  - M.M. Donzeau
AU  - M. E. Gettings
PY  - 1981
DO  - 10.3133/ofr811152
UR  - https://pubs.usgs.gov/publication/ofr811152
ID  - ofr811152
ER  -