@article {PIE146,
	title = {Relationships of land use and streamwater solute concentrations in the Ipswich River basin, northeastern Massachusetts.},
	journal = {Water, Air, and Soil Pollution},
	volume = {161},
	year = {2005},
	note = {PD Plum Data},
	keywords = {land cover, land use, LTER-PIE, solute concentration, urbanization, watershed},
	doi = {10.1007/s11270-005-2830-0},
	author = {Williams, M. and Hopkinson, C. and Rastetter, E. and Vallino, J. and Claussens, L.}
}
@article {PIE138,
	title = {N budgets and aquatic uptake in the Ipswich River basin, northeastern Massachusetts.},
	journal = {Water Resources Research},
	volume = {40},
	number = {11},
	year = {2004},
	note = {PD Plum Data},
	pages = {1-12},
	keywords = {anthropogenic, land use, LTER-PIE, nitrogen, uptake, water quality},
	doi = {10.1029/2004WR003172},
	author = {Williams, M. and Hopkinson, C. and Rastetter, E. and Vallino, J.}
}
@article {PIE130,
	title = {Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON / TDN in northeastern U.S. rivers and streams},
	journal = {Limnology and Oceanography},
	volume = {49},
	year = {2004},
	note = {Grad},
	pages = {910-918},
	keywords = {dissolved organic nitrogen, land use, LTER-PIE, watershed, wetlands},
	doi = {10.4319/lo.2004.49.4.0910},
	author = {Pellerin, B.A. and Wollheim, W. and Hopkinson, C. and McDowell, W. and Williams, M. and Vorosmarty, C. and Daley, M.}
}
@article {PIE45,
	title = {Solute dynamics in storm flow of the Ipswich River Basin: Effects of land use.},
	journal = {Biological Bulletin},
	volume = {199},
	number = {2},
	year = {2000},
	note = {REU},
	pages = {219-221},
	keywords = {Ipswich River, land use, LTER-PIE, solute chemistry, storm flow},
	doi = {10.2307/1542908},
	author = {Perring, A. and Williams, M. and Hopkinson Jr., C. and Rastetter, E. and Vallino, J.}
}
