1. Proc. 2nd Intern. Conf. Peaceful Uses Atomic Energy, Geneva31(1958).
2. Soluble Three-Dimensional Model for Townsend'sα
3. The Efficiencies of Ionization and Ionization Potentials of Various Gases Under Electron Impact
4. Townsend Ionization Coefficient for Hydrogen and Deuterium
5. K. M. Case, F. de Hoffmann, and G. Placzek,Introduction to the Theory of Neutron Diffusion(Los Alamos Scientific Laboratory, Los Alamos, New Mexico, 1953), Vol. I.