Longworth B.E, Petsch S.T, Raymond P.A, Bauer J.E.  2007.  Linking lithology and land use to sources of dissolved and particulate organic matter in headwaters of a temperate, passive-margin river system. Geochimica Et Cosmochimica Acta. 71(17):4233-4250.

Bauer J.E, Raymond P.A, Cole J.J, Petsch S.T, Longworth B.E, Caraco N.F, Keesee E.J.  2007.  Regional variability in the ages and reactivities of riverine dissolved and particulate organic matter exported to a temperate ocean margin. ASLO Aquatic Sciences Meeting. 

Longworth B.E, Petsch S.T, Raymond P.A, Bauer J.E.  2006.  A geostatistical approach to watershed sources of aged riverine organic matter to the Hudson-Mohawk River system. American Geophysical Union Fall Meeting. 

Petsch S.T, Gordon E.S, Longworth B.E, Schillawki S.E, Raymond P.A.  2006.  Sources age and composition of dissolved and particulate organic matter delivered to a passive margin river system. ASLO/AGU Ocean Science Meeting. 

Petsch S.T, Edwards K.J, Eglinton T.I.  2005.  Microbial transformations of organic matter in black shales and implications for global biogeochemical cycles. Geobiology: Objectives, Concepts, Perspectives. 

Raymond P.A, Bauer J.E, Caraco N.F, Cole J.J, Longworth B.E, Petsch S.T.  2004.  Controls on the variability of organic matter and dissolved inorganic carbon ages in northeast U.S. rivers. Marine Chemistry. 92:353-366.

Longworth B.E, Raymond P.A, Petsch S.T.  2003.  Ancient organic matter sources to the Hudson-Mohawk River system: implications of riverine transport of ancient organic matter for the global biogeochemical. American Geophysical Union (AGU). 

Petsch S.T, Eglington T.I, Edwards K.J.  2001.  14C-dead living biomass: evidence for microbial assimilation of ancient organic carbon during shale weathering. Science. 292(5519):1127-31.

Petsch S.T, Smernik R.J, Eglinton T.I, Oades J.M.  2001.  A solid state 13C NMR study of kerogen degradation during black shale weathering. Geochim. Cosmochim. Acta. 65:1867-1882.