1. A method for measuring thoron and radon gas concentrations using solid-state alpha-particle detectors;Bigu;Int. J. Appl. Radiat. Isot.,1986
2. Radon-220 determination using activated C and a high purity Ge detector;Bigu;Health Phys.,1986
3. Emanation of radon from solid samples;Bigu,1991
4. The quantitative determination of gaseous radioelements which yield radioactive daughter products;Fontan,1964
5. Emploi d'un systeme de coincidences dans le dosage selectif du radon et du thoron atmospheriques;Fontan;J. de Phys. et le Radium,1962