%0 Journal Article %J Biogeochemistry %D 1996 %T Geochemistry of aquatic humic substances in the Lake Fryxell Basin, Antarctica %A George R. Aiken %A Diane M. McKnight %A Richard A. Harnish %A Robert Wershaw %B Biogeochemistry %V 34 %P 157-188 %G eng %M LTER12782