1. Comparative analysis of reference evapotranspiration from the surface of rainfed grass in central Serbia, calculated by six empirical methods against the Penman-Monteith formula;Alexandris;European Water,2008
2. FAO Irrigation and Drainage;Allen,1998
3. Assessing of evapotranspiration models using limited climatic data in Southeast Anatolian Project Region of Turkey;Aydın;PeerJ,2021
4. Calibration of the equations of Hargreaves and Thornthwaite to estimate the potential evapotranspiration in semi–arid and sub humid tropical climates for regional applications;Bautista;Atmósfera,2009
5. Assessing reference evapotranspiration by the Hargreaves method in north-eastern Italy;Berti;Agric. Water Manag.,2014