P.A. Schwarz
Siccama, T.G., Timothy J. Fahey, Chris E. Johnson, T.W. Sherry, E.G. Denny, E.B. Girdler, Gene E. Likens, and P.A. Schwarz. 2007. “Population And Biomass Dynamics Of Trees In A Northern Hardwood Forest At Hubbard Brook”. Can. J. For. Res. 37: 737-749.
Fahey, Timothy J., T.G. Siccama, Charles T. Driscoll, Gene E. Likens, John L. Campbell, Chris E. Johnson, J. J. Battles, et al. 2005. “The Biogeochemistry Of Carbon At Hubbard Brook”. Biogeochemistry 75: 109-176.
Venterea, R.T., Gary M. Lovett, Peter M. Groffman, and P.A. Schwarz. 2003. “Landscape Patterns Of Soil Nitrate Production In A Northern Hardwood-Conifer Forest”. Soil Sci. Soc. Am. J. 67: 527-539.