%0 Report %D 2004 %T Lichens in a changing pollution environment %A Lamberley, P. %A Wolsey, P. %I English Nature Research Reports %C Peterborough %P 84-89 %G eng %0 Report %D 2003 %T Refinement and testing of bio-monitoring methods and development of protocols, for assessing impacts of atmospheric nitrogen deposition or concentrations on statuary nature conservation sites. %A Leith, I.D. %A van Dijk, N. %A Pitcairn, C.E.R. %A Sheppard, L.J. %A Wolsey, P. %A Sutton, M.A. %I JNCC %C Peterborough %G eng