TY  - RPRT
TI  - Digital computer terrain mapping from multispectral data
AU  - Harry W. Smedes
AU  - Kenneth L. Pierce
AU  - Marc G. Tanguay
AU  - Roger M. Hoffer
PY  - 1970
DO  - 10.2514/3.30097
UR  - https://pubs.usgs.gov/publication/70226548
ID  - 70226548
ER  -