Beattie, C., Elsom, D., Gibbs, D., Irwin, J., Jefferson, C., Ling, K., …Woodfield, N. (1999). Best practice in English local air quality management: principles illustrated by some examples of current practice. In C. Brebbia, M. Jacobson, & H. Power (Eds.), Air Pollution VII (199-212). Southampton: Wit Press