1. Tech. Rep. ERL 228,1972
2. Apel, J. R. and Byrne, H. M.: 1974, ?Oceanography and the Marine Geoid?,Applications of Marine Geodesy, Marine Technology Society, Washington,. D.C., p. 59.
3. Seasat-A Scientific Contributions;J. R. Apel,July, 1974
4. Apel, J. R.: 1976, ?Ocean Science from Space?,Trans. Amer. Geophys. Union 57, 612?624.
5. Barncastle, L.: 1971, ?ITOS Meteorological Scanning Radiometer?,Proc. Electro-Optics '71 West, 164.