A Comparison of the Standardized Precipitation Evapotranspiration Index Using Thronthwaite and Penman-Monteith Parameterizations for Potential Evapotranspiration
A Comparison of the Standardized Precipitation Evapotranspiration Index Using Thronthwaite and Penman-Monteith Parameterizations for Potential Evapotranspiration
(2013).