@article {1564, title = {Growth and tissue nitrogen of epiphytic Atlantic bryophytes: effects of increased and decreased atmospheric N deposition.}, journal = {Functional Ecology}, volume = {18}, year = {2004}, pages = {322-329}, author = {Mitchell, R.J. and Truscott, A.M. and Leith, I.D. and Cape, J.N. and van Dijk, N. and Tang, Y.S. and Fowler, D. and Sutton, M.A.} } @book {1579, title = {Impact of atmospheric nitrogen deposition on epiphytes in Atlantic oakwoods.}, year = {2003}, author = {Mitchell, R.J. and Truscott, A.M. and Leith, I.D. and Tang, Y.S. and van Dijk, N. and Smith, R.I. and Sutton, M.A.} }