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The Science of the Total Environment|March 3, 2001
Interaction of nitrogen deposition and land use on soil and water quality in Scotland: issues of spatial variability and scaleR C Helliwell, R C Ferrier, M R Kernan
Environmental Pollution (Barking, Essex : 1987)|March 8, 2008
Interactive effects of nitrogen deposition and fire on plant and soil chemistry in an alpine heathlandA J Britton, R C Helliwell, J M Fisher, et al.
Environmental Pollution (Barking, Essex : 1987)|June 10, 2005
Nitrate leaching as a confounding factor in chemical recovery from acidification in UK upland watersC J Curtis, C D Evans, R C Helliwell, et al.
Environmental Pollution (Barking, Essex : 1987)|April 20, 2004
Will reduced sulphur emissions under the Second Sulphur Protocol lead to recovery of acid sensitive sites in UK?A Jenkins, R C Helliwell, P J Swingewood, et al.
The Science of the Total Environment|June 8, 2012
Controls on soil solution nitrogen along an altitudinal gradient in the Scottish uplandsL Jackson-Blake, R C Helliwell, A J Britton, et al.
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