1. Neutron probe practice;Bell;Inst. Hydrol., Rep.,1976
2. High-frequency moisture probe;Galfy,1984
3. Aqueous Dielectrics;Hasted,1973
4. Dielectric properties of soils at U.H.F. and microwave frequencies;Hoekstra;J. Geophys. Res.,1974
5. A new dielectric soil moisture meter for field measurement of soil moisture;Kuraz;Int. Comm. Irrig. Drain.,1977