TY - RPRT T1 - Mapping and modelling of critical loads for nitrogen - a workshop report Y1 - 1995 A1 - Bobbink, R. A1 - Roelofs, J.G.M. A1 - Hornung, M. (Eds) A1 - Sutton, M.A. (Eds) A1 - Wilson, R.B. [Eds.] PB - Institute of Terrestrial Ecology CY - Bush ER -