Farrell, W. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Aggson, T. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rodgers, E. B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hanson, W. B. (Texas Univ. at Dallas, Richardson, TX, United States)