Roberts M.L, Elder K.L, Jenkins W.J, Gagnon A.R, Xu L., Hlavenka J.D, Longworth B.E.  2019.  14C Blank Corrections for 25?100 ?g Samples at the National Ocean Sciences AMS Laboratory. Radiocarbon. 61(5):1403-1411.

Roberts M.L, Burton J.R, Elder K.L, Longworth B.E, McIntyre C.P, von Reden K.F, Han B.X, Rosenheim B.E, Jenkins W.J, Galutschek E. et al..  2010.  A High-Performance (14)c Accelerator Mass Spectrometry System. Radiocarbon. 52(2):228-235.

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. 

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).