1. Aguilar, C.: Scale effects in hydrological processes. Application to the Guadalfeo river watershed (Granada). PhD Thesis. University of Córdoba, http://www.cuencaguadalfeo.com/archivos/Guadalfeo/Tesis/TesisCris_en.pdf, last access: 5 April 2010, 2008.
2. Allen, R. G.: A Penman for all seasons, J. Irrig. Drain. Eng. ASCE., 112, 348–368, 1986.
3. Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration, guidelines for computing crop water requirements, Irrig. and Drain. Pap., 56. U.N. Food and Agric. Organ., Rome, 1998.
4. Allen, R. G., Trezza, R., and Tasumi, M.: Analytical integrated functions for daily solar radiation on slopes, Agric. For. Meteorol., 139, 55–73, 2006.
5. Annear, R. L. and Wells, S. A.: A comparison of five models for estimating clear-sky solar radiation, Wat. Resour. Res., 43, W10415, https://doi.org/10.1029/2006WR005055, 2007.