1. The forecasting from weather data of potato blight and other plant diseases and pests;Bourke;W.M.O. Techn. Note,1955
2. Potato blight recording by aerial photography;Brenchley;N.A.A.S. Quart. Rev.,1962
3. Zum quantitativen Vergleich der Ertragsbildung verschiedener Sorten;Claus;Züchter,1965
4. Estimation of thermoreaction curves for the rate of development;Ferguson,1962
5. Stochastic set functions;Prékopa;Acta Math. Acad. Sci. Hung.,1956