J.O. Sickman
Fenn, Mark E., J.O. Sickman, A. Bytnerowicz, D.W. Clow, N.P. Molotch, J.E. Pleim, G.S. Tonnesen, Kathleen C. Weathers, P.E. Padgett, and D.H. Campbell. 2009. “Methods for Measuring Atmospheric Nitrogen Deposition Inputs in Arid and Montane Ecosystems of Western North America”. In A. H. Legge (ed.). Developments in Environmental Science Series Vol. 9: Relating Atmospheric Source Apportionment to Vegetation Effects: Establishing Cause Effect Relationships, 179-228. Elsevier, Amsterdam.