1. An empirical model of photochemical smog formation;Johnson,1983
2. Factors affecting oxidants formation in Sydney air;Johnson,1983
3. Johnson, G. M., 1984, A simple model for predicting the ozone concentration of ambient air, Proc of the Eighth International Clean Air Conference, Volume 2, The Clean Air Society of Australia and New Zealand, 715–731.
4. Johnson, G. M. and Quigley, S. M., 1989, A universal monitor for photochemical smog, Proc 82nd Annual Meeting of the Air and Waste Management Association, Paper 89-29.8.
5. Johnson, G. M., Quigley, S. M, Smith, J. G., 1990, Management of photochemical smog using the airtrak approach, Proc 10th Interna tional Conference Clean Air Society of Australia and New Zealand, Auckland, NZ, 209–214.