1. Remote analysis of surfaces by neutron-gamma ray inelastic scattering technique;SCHRADER;J. Geophys. Res.,1961
2. ARNOLD, J. R., The gamma spectrum of the moon's surface, Proc. of Lunar and Planetary Exploration Colloquium 1, No. 3, 28 (1958) (Space and Information Systems Div., North American Aviation, Inc., Downey, Calif.).
3. Ranger gamma-ray spectrometer;METZGER;Nucleonics,1962
4. Measurements of gamma-radiation from the surface of the moon by the cosmic station “Luna-10”;VINOGRADOV;Geochemistry Internation,1966
5. On a diffuse reflection of the α-particles;GEIGER;Proc. Roy. Soc.,1909