Pypker, T. G.; Hauck, M.; Sulzman, E. W.; Unsworth, M. H.; Mix, A. C.; Kayler, Z.; Conklin, D.; Kennedy, A. M.; Barnard, H. R.; Phillips, C.; Bond, B. J. 2008. Toward using ?13C of ecosystem respiration to monitor canopy physiology in complex terrain. Oecologia. 158: 399-410.