Pitcairn CER, D. F, Leith ID, Sheppard LJ, Tang YS, Sutton MA, D. F. Diagnostic indicators of elevated nitrogen deposition. Environmental Pollution. 2006  ;144.

Fowler D, Dragosits U, Pitcairn CER, Sutton MA, Hall J, Roy DB, Weidemann A. Deposition of acidifying and eutrophying air pollutants in Scotland: Mapping critical loads, critical levels and exceedances. Centre for Ecology and Hydrology; 2001.

Sutton MA, Milford C, Dragosits U, Place CJ, Singles RJ, Smith RI, Pitcairn CER, Fowler D, Hill J, ApSimon HM, et al. Dispersion, deposition and impacts of atmospheric ammonia: quantifying local budgets and spatial variability. Environmental Pollutution (Nitrogen Conference Special Issue). 1998  ;102:349-361.

Pitcairn CER, Fowler D, Grace J. Deposition of fixed atmospheric nitrogen and foliar nitrogen content of bryophytes and Calluna vulgaris. Environmental Pollution. 1995  ;88:193-205.