TY  - RPRT
TI  - A millimeter wave technique for measuring ice thickness on the Space Shuttle's external tank
AU  - Kendra, John E.
AU  - Ulaby, Fawwaz T.
AU  - Wu, Steve
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19920034585
ID  - 19920034585
ER  -