Wang X.C, Callahan J., Chen R.F.  2006.  Variability in radiocarbon ages of biochemical compound classes of high molecular weight dissolved organic matter in estuaries. Estuarine Coastal and Shelf Science. 68(1-2):188-194.

Wang X.C, Altabet A.M, Callahan J., Chen R.F.  2004.  Stable carbon and nitrogen isotopic compositions of organic compound classes in high molecular weight dissolved organic matter from four U. S. estuaries. Geochimica et Cosmochimica Acta. 68:2681-2691.

Aluwihare L.I, Repeta D.J, Chen R.F.  2002.  Chemical composition and cycling of dissolved organic matter in the Mid-Atlantic Bight. Deep-Sea Research Part Ii-Topical Studies in Oceanography. 49(20):4421-4437.

Wang X.C, Chen R.F, Whelan J., Eglinton L..  2001.  Contribution of "old" carbon from natural marine hydrocarbon seeps to sedimentary and dissolved organic carbon pools in the Gulf of Mexico. Geophysical Research Letters. 28(17):3313-3316.