Roger N. Clark

Hydrogen peroxide on the surface of Europa.

R E Johnson, R. E. Johnson, L A Soderblom, 1999, Science.

Near-Infrared Spectroscopy and Spectral Mapping of Jupiter and the Galilean Satellites: Results from Galileo's Initial Orbit

T. Encrenaz, P. Drossart, A. Weir, 1996, Science.