Lopes-Gautier, Rosaly ; Smythe, W D ; McEwen, A S ; Giessler, P E ; Davies, A G ; Kamp, L ; Soderblom, L A ; Carlson, R W ; Keszthelyi, L ; Spencer, J R
Lunar and planetary science XXX; Proceedings of the 30th Lunar and Planetary Science Conference, Houston, TX; UNITED STATES; 15-19 Mar. 1999, 1999