@article {2009,
	title = {Stable carbon and nitrogen isotopic compositions of organic compound classes in high molecular weight dissolved organic matter from four U. S. estuaries},
	journal = {Geochimica et Cosmochimica Acta},
	volume = {68},
	year = {2004},
	note = {id: 515},
	month = {2004},
	pages = {2681-2691},
	author = {Wang, X. C. and Altabet, A. M. and Callahan, J. and Chen, R. F.}
}
