@article {539,
	title = {Critical loads of sulphur and nitrogen for freshwaters in Great Britain and assessment of deposition reduction requirements with the First-order Acidity Balance (FAB) model},
	volume = {4},
	year = {2000},
	pages = {125-140},
	author = {Curtis, C. and Allott, T. and Hall, J. and Harriman, R. and Helliwel, R. and Hughes, M. and Kernan, M. and Reynolds, B. and Ullyett, J.}
}
@article {22,
	title = {Dispersion, deposition and impacts of atmospheric ammonia: quantifying local budgets and spatial variability},
	journal = {Environmental Pollutution (Nitrogen Conference Special Issue)},
	volume = {102},
	year = {1998},
	pages = {349-361},
	chapter = {1},
	author = {Sutton, M.A. and Milford, C. and Dragosits, U. and Place, C.J. and Singles, R.J. and Smith, R.I. and Pitcairn, C.E.R. and Fowler, D. and Hill, J. and ApSimon, H.M. and Ross, C. and Hill, R. and Jarvis, S.C. and Pain, B.F. and Phillips, V.C. and Harrison, R. and Moss, D. and Webb, J. and Espenhahn, S.E. and Lee, D.S. and Hornung, M. and Ullyett, J. and Bull, K.R. and Emmett, B.A. and Lowe, J. and Wyers, G.P.}
}
