1. Measurement of soil moisture and density by nuclear method;Sweeney;AERE-Bib,1962
2. Neutron-moderation moisture meters, analysis of applications to coal and soil;Semmler;COO-712-73,1963
3. Neutron moisture meter for concrete;Pawlin;Can. J. Technol.,1957
4. Neutron spectrum of an actinium-beryllium source;Dixon;Can. J. Phys.,1957
5. Uber Feuchtigkeitsmessung vermittels Neutronen;Westmeyer;Kernenergie,1963