1. On the relationship between incoming solar radiation and daily maximum and minimum temperature;Bristow;Agric. For. Meteor.,1984
2. Brooks, R.H., Corey, A.T., 1964. Hydraulic Properties of Porous Media Hydrology Paper 3, Colorado St. Univ., Fort Collins.
3. Caldwell, R.M., 2000. Object-oriented CERES. Annual Meeting Abstract. ASA-CSSA-SSSA, 5-9 November, Minneapolis, Minnesota, p 18.
4. Soil Physics with BASIC. Transport Models for Soil-Plant Systems;Campbell,1985
5. Doorenbos, J., Pruitt, W.O., 1977. Guidelines for predicting crop water requirements. In: Irrigation and drainage paper 24. (2nd edition) FAO, Rome, p 156.