1. On the theory of the neutronic method for measuring the water content in soil;Olgaard,1965
2. Neutron moderation moisture meters, analysis of application to coal and soils;Semmler;Final Report, COO-712-73,1963
3. Radioisotope Measurement Applications in Engineering;Gardner,1967
4. Analysis, calculations and measurements concerning the moisture measuring by the neutron method;Kasi;Nucl. Eng. Des.,1966
5. Monte Carlo study of neutrons in soil for surface moisture gauges;Kirkegaard,1969