Hemingway JD, Schefuß E, Spencer RGM, Dinga BJean, Eglinton TI, McIntyre C, Galy VV.  2017.  Hydrologic controls on seasonal and inter-annual variability of Congo River particulate organic matter source and reservoir age. Chemical Geology. 466:454-465.

Fellman JB, Hood E, Raymond PA, Stubbins A, Spencer RGM.  2015.  Spatial Variation in the Origin of Dissolved Organic Carbon in Snow on the Juneau Icefield, Southeast Alaska. Environmental Science & Technology. 49(19):11492-11499.

Spencer RGM, Guo W, Raymond PA, Dittmar T, Hood E, Fellman J, Stubbins A.  2014.  Source and biolability of ancient dissolved organic matter in glacier and lake ecosystems on the Tibetan Plateau. Geochimica et Cosmochimica Acta. 142:64-74.