@article {,
	title = {History of nutrient inputs to the Northeastern United States, 1930-2000.},
	journal = {Global Biogeochemical Cycles},
	volume = {27},
	number = {2},
	year = {2013},
	note = {PI Data},
	pages = {578-591},
	keywords = {anthropogenic, disturbance, inorganic nutrients, LTER-PIE, Northeast United States, nutrient inputs},
	doi = {10.1002/gbc.20049},
	author = {Hale, R.L. and Hoover, J.H. and Wollheim, W.M. and Vorosmarty, C.J.}
}
@article {PIE180,
	title = {Global N removal by freshwater aquatic systems A spatially distributed, within-basin approach},
	journal = {Global Biogeochemical Cycles},
	volume = {22},
	year = {2008},
	note = {PI Plum Data},
	keywords = {disturbance, inorganic nitrogen, LTER-PIE, nitrogen removal, watershed},
	doi = {10.1029/2007GB002963},
	author = {Wollheim, W.M. and Vorosmarty, C.J. and Bouwman, A.F. and Green, P.A. and Harrison, J. and Linder, E. and Peterson, B.J. and Green, P.A. and Seitzinger, S. and Syvitski, J.P.M.}
}
@article {PIE168,
	title = {The application of electrical conductivity as a tracer for hydrograph separation in urban catchments.},
	journal = {Hydrological Processes},
	volume = {22},
	year = {2007},
	note = {PI Plum Data},
	pages = {1810-1818},
	keywords = {disturbance, electrical conductivity, hydrograph separation, impervious, LTER-PIE, urbanization},
	doi = {10.1002/hyp.6786},
	author = {Pellerin, B.A. and Wollheim, W.M. and Feng, X. and Vorosmarty, C.J.}
}
