1. R.L. Astapenko , 1960 : Atmospheric processes in high latitudes of the southern hemisphere ,Seria resultaty MGG (Results of the 1GY) (In Russian). Moscow.
2. Rainfall in England: The true long-average as deduced from Symmetry
3. B. Bell , in press: The method of cumulative deviations from the mean, applied to date of wine harvest, vine yield, and wine quality, in J .Interdisciplinary History(1980).
4. M.I. Budyko , 1974 :Climatic changes, orig. pub. Gidrometeouzdat, Leningrad; English language version trans, and pub. by Amer. Geophys. Union, Washington, D.C., see esp. Ch. 3.