1. Some effects of walking and skiing on vegetation at Cairngorm;Bayfield,1971
2. The condition of the footpath;Bayfield,1973
3. Effects of trampling and soil compaction on the occurrence of some Plantago species in coastal sand dunes;Blom;Oecol. Plant.,1976
4. Quantitative studies of the effects of human trampling as an aid to the management of semi-natural areas;Burden;J. appl. Ecol.,1972
5. Fundamental techniques in the study of turfgrass wear: An advance report on research;Canaway;J. Sports Turf Res. Inst.,1975