1. Butlin, R.N., Coote, A.T., Devenish, M.,et al.: 1992a,Atmospheric Environment 26B, 189?198
2. Butlin, R.N., Coote, A.T., Devenish, M,et al.: 1992b,Atmospheric Environment 26B, 199?206
3. Derwent, R.G., Nodop, K.: 1986,Nature 324, 356?358.
4. Derwent, R.G., Dollard, G.J., Metcalfe, S.E.: 1988,Q.J.R. Meteorol. Soc. 114, 1127?1152.
5. ECOTEC: 1986,Identification and Assessment of Materials Damage to Buildings and Historic Monuments by Air Pollution, Report to the UK Department of the Environment.