@article {3596, title = {Acid Deposition Alters Red Spruce Physiology: Laboratory Studies Support Field Observations}, journal = {Canadian Journal of Forest Research}, volume = {23}, year = {1993}, month = {March}, pages = {380-386}, keywords = {Acid rain, Red spruce, Soil acidity}, author = {McLaughlin, Samuel B and Tjoelker, Mark G and Roy, W. Kelly} }