@article {87, title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under {\textquoteright}real world conditions{\textquoteright}}, journal = {Environmental Pollution}, volume = {154}, year = {2008}, pages = {404-413}, author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.} }