D. Bishop
Sullivan, T. J., G. B. Lawrence, Scott W. Bailey, T. C. McDonnell, C. M. Beier, Kathleen C. Weathers, G. T. McPherson, and D. A. Bishop. 2013. “Effects Of Acidic Deposition And Soil Acidification On Sugar Maple Trees In The Adirondack Mountains, New York”. Environmental Science & Technology 47 (22): 12687 - 12694. doi:10.1021/es401864w.