TY - Generic T1 - Quantifying dry NH3 release system to ombrotrophic bog from an automated NH3 field release system Y1 - 2004 A1 - Leith, I.D. A1 - Sheppard, L.J. A1 - Fowler, D. A1 - Cape, J.N A1 - Jones, M.R. A1 - Crossley, A. A1 - Hargreaves, K.J. A1 - Tang, Y.S. A1 - Theobald, M.R. A1 - Sutton, M.A. JF - Water, Air, and Soil Pollution: Focus VL - 4 ER -