TY - RPRT T1 - Methods to derive critical loadsfor nitrogen for terrestrial ecosystems Y1 - 1995 A1 - de Vries, W. A1 - Latour, J.B. JF - In Mapping and Modelling of Critical Loads for Nitrogen—A Workshop Report. Eds.M. Hornung, M.A. Sutton and R.B. Wilson. PB - Institute of Terrestrial Ecology CY - Penicuik ER -