Doran PT, Wharton, Jr. RA, DesMarais DJ, McKay CP. Antarctic paleolake sediments and the search for extinct life on Mars. Journal of Geophysical Research-Planets. 1998;103(E12):28481-28493. doi:10.1029/98JE01713.

Kepner RL, Wharton, Jr. RA, Galchenko V. The abundance of planktonic virus-like particles in Antarctic lakes. In:  Ecosystem Processes in Antarctic Ice-free Landscapes. Ecosystem Processes in Antarctic Ice-free Landscapes. Rotterdam: Balkema Press; 1997:241-250.