NITROGEN EXCESS IN NORTH AMERICAN ECOSYSTEMS: PREDISPOSING FACTORS, ECOSYSTEM RESPONSES, AND MANAGEMENT STRATEGIESEcological Applications - Tập 8 Số 3 - Trang 706-733 - 1998
Mark E. Fenn, Merrily Poth, John D. Aber, Jill S. Baron, Bernard T. Bormann, Dale W. Johnson, A. Dennis Lemly, Steven G. McNulty, Douglas F. Ryan, Robert Stottlemyer