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2. Kerr , J.B. C.T. McElroy R.A. Olafson Measurements of ozone with the Brewer ozone spectrophotometer. Proceedings of the Quadrennial International Ozone Symposium IOC, IAMAP Julius London 74 79 S. Ruttenberg, Secretary General, IAMAP, NCAR Boulder 1981
3. Kerr , J.B. W.F.J. Evans C.L. Mateer Measurements of SO 2 in the Mt. St. Helens debris, Proceedings of the Symposium on the Mt. St. Helen's Eruption 1980