Schenk, Paul (Lunar and Planetary Inst. Houston, TX United States)
Hargitai, Henrik (Eoetvoes Lorand Univ. Budapest, Hungary)
Wilson, Ronda (Lunar and Planetary Inst. Houston, TX United States)
McEwen, Alfred (Arizona Univ. Tucson, AZ United States)
Thomas, Peter (Cornell Univ. Ithaca, NY United States)
Bredekamp, Joe