@article {PIE210,
	title = {Salt marsh ecosystem biogeochemical responses to nutrient enrichment: A paired <sup>15</sup>N tracer study.},
	journal = {Ecology},
	volume = {90},
	number = {9},
	year = {2009},
	note = {PD Plum Data},
	pages = {2535-2546},
	keywords = {biogeochemistry, disturbance, eutrophication, inorganic nutrients, LTER-PIE, New England, nitrogen processing efficiency, organic matter, primary production, salt marsh, stable isotopes, USA},
	doi = {10.1890/08-1051.1},
	author = {Drake, D.C. and Peterson, B.J. and Galv{\'a}n, K.A. and Deegan, L.A. and Fleeger, J.W. and Hopkinson, C. and Johnson, J.M. and Koop-Jakobsen, K. and Lemay, L.E. and Miller, E.E. and Picard, C. and Warren, R.S.}
}
@article {PIE34,
	title = {Nitrogen biogeochemistry in the oligohaline zone of a New England estuary.},
	journal = {Ecology},
	volume = {81},
	number = {2},
	year = {2000},
	note = {PD Plum Data},
	pages = {416-432},
	keywords = {15N, Actinocyclus normanii, diatoms, estuary, inorganic nutrients, land-margin ecosystem, LTER-PIE, nitrogen cycling, oligohaline zone, organic matter, phytoplankton, primary production, silica, stable isotopes, terrestrial-aquatic linkage},
	doi = {10.2307/177437},
	author = {Holmes, R. M. and Peterson, B.J. and Deegan, L. and Hughes, J. and Fry, B.}
}
