Lawson J. Lacustrine Biogeochemistry of the McMurdo Dry Valleys.  2005;Ph.D. doi:LTER.

Lawson J, Doran PT, Kenig F, DesMarais DJ, Priscu JC. Stable carbon and nitrogen isotopic compositions of benthic and pelagic organic matter in four polar lakes of the McMurdo Dry Valleys, Antarctica. Aquatic Geochemistry. 2004;10:269-301.