1. An update for the definition of reference evapotranspiration;Allen;ICID Bull.,1994
2. An update for the calculation of reference evapotranspiration;Allen;ICID Bull.,1994
3. Allen, R.G., Pereira, L.S., Raes, D., Smith, M., 1998. Crop Evapotranspiration-Guidelines for Computing Crop Water Requirements, Irrigation and Drain, Paper No. 56. FAO, Rome, Italy, 300 pp.
4. Concept paper—accuracy of predictions of project-wide evapotranspiration using crop coefficients and reference evapotranspiration in a large irrigation project;Allen,1999
5. Using the FAO-56 dual crop coefficient method over an irrigated region as part of an evapotranspiration intercomparison study;Allen;J. Hydrol.,2000