1. Combination equation used to calculate evaporation and potential evapotranspiration;Bartholic;U.S. Dept. Agric., ARS, 41-1,1970
2. Some remarks on Penmans equations for the evapotranspiration;Businger;Neth. J. Agric. Sci.,1956
3. Consumptive Use of Water and Irrigation Water Requirements,1974
4. Evaporation from pans and lakes;Kohler;U.S. Dept. Commerce Res. Pap.,1955
5. Testing the Penman formula by means of lysimeters;Makkink;J. Inst. Water Eng.,1957