1. An electrical resistance method for the continuous measurement of soil moisture under field conditions;Bouyoucos,1940
2. Improvements in the plaster of Paris absorption block electrical resistance method for measuring soil moisture under field conditions;Bouyoucos;Soil Sci.,1947
3. Principles, practices, and potentialities of trickle (drip) irrigation;Bucks,1982
4. Irrigation decisions simplified with electronics and soil water sensors;Cary;Soil Sci. Soc. Amer. J.,1983
5. Crop water requirements;Doorenbos,1977