@article {KNZ00367, title = {Leaf gas exchange in Quercus macrocarpa (Fagaceae): rapid stomatal responses to variability in sunlight in a tree growth form}, journal = {American Journal of Botany}, volume = {79}, year = {1992}, pages = {599 -604}, keywords = {LTER-KNZ}, doi = {http://www.jstor.org/stable/2444875}, author = {Alan K. Knapp} }