@article {1326, title = {Effects of enhanced nitrogen deposition and phosphorus limitation on nitrogen budgets of semi-natural grasslands}, journal = {Global Change Biology}, volume = {9}, year = {2003}, pages = {1309-1321}, author = {Phoenix, G.K. and Booth, R.E. and Leake, J.R. and Read, D.J. and Grime, J.P. and Lee, J.A.} }