DAS, H. P. ., A. . CHOWDHURY, and R. S. . BHAGWAT. “A Two Layer Soil Moisture Model for Estimating Crop Evapotranspiration and Runoff”. MAUSAM, vol. 50, no. 4, Oct. 1999, pp. 375-82, doi:10.54302/mausam.v50i4.1950.