1. Effects of tropospheric refraction on radio wave propagation;CCIR (ComitéConsultatif Internationale de Radio),1986
2. Attenuation of visible and infrared radiation;CCIR (ComitéConsultatif Internationale de Radio),1986
3. remote data acquisition for agricultural experiment station management;Cockerham;Appl. Agric. Res.,1989
4. Computer interfacing for centre pivot monitoring, control and irrigation scheduling;Duke,1983
5. Irrigation scheduling using crop-air temperature difference;Geiser;Trans. ASAE,1982