1. The impact of a road upon adjacent heathland vegetation: effects on plant species composition;Angold;J. Appl. Ecol.,1997
2. The use of simple diffusion tubes for the measurement of nitrogen dioxide levels in homes using gas and electricity for cooking;Atkins,1978
3. Changed vegetation composition in coniferous forests near to motorways in Southern Germany: the effects of traffic-born pollution;Bernhardt-Römermann;Environ. Poll.,2006
4. Bignal, K.L., 2004. The effects of vehicle emissions on bryophytes and lichens. PhD Thesis, Univ. Bradford.
5. Bignal, K.L., Ashmore, M.R., Power, S., 2004. The ecological effects of diffuse air pollution from road transport. English Nature Research Report no. 580. English Nature, Peterborough.