1. Aboukhaled, A., Alfaro, A., Smith, M., 1982. Lysimeters. FAO Irrigation and Drainage Paper No. 39, p.69.
2. Assessing integrity of weather data for use in reference evapotranspiration estimation;Allen;J. Irrig. Drain. Eng. ASCE,1996
3. Operational estimate of reference evapotranspiration;Allen;Agron. J.,1989
4. Allen, R.G., Howell, T.A., Pruitt, W.O., Walter, I.A., Jensen, M.E. (Eds.), 1991. Lysimeters for evapotranspiration and environmental measurements. Proceedings of the International Symposium on Lysimetry, July, 23–25, 1991, Honolulu, HI, ASCE Publication, p. 444.
5. An update for the definition of reference evapotranspiration;Allen;ICID Bull.,1994