1. Sun Angle Calculator;Aeronautical Services, Inc.,1951
2. An Introduction to Physical Microclimatology;Brooks,1959
3. The use of a Gunn-Bellani distillator to determine net radiative flux in West Africa;Davies;J. Appl. Meteorol.,1965
4. Tables for estimating direct beam solar irradiation on slopes at 30° to 46° latitude;Fons;U. S. Dept. Agr., Forest Serv., Pacific Southwest Forest Range Expt. Sta.,1960
5. Potential solar beam irradiation on slopes;Frank;U. S. Dept. Agr., Forest Serv., Res. Papers,1966