%0 Report %D 1995 %T Mapping and modelling of critical loads for nitrogen - a workshop report %A Bobbink, R. %A Roelofs, J.G.M. %A Hornung, M. (Eds) %A Sutton, M.A. (Eds) %A Wilson, R.B. [Eds.] %I Institute of Terrestrial Ecology %C Bush %P 9-19 %& Empirical nitrogen critical loads: update since Lokeberg (1992).