1. Electronic Procession in Ionic Crystals;Mott,1940
2. The actual band structures of silicon and germanium are rather complex, which requires a modification of the kinetic energy term (see Settions 5 and 9).
3. Optical Investigations of Impurity Levels in Silicon
4. “Electrons and Holes in Semiconductors,” Section 16.4.;Shockley,1950
5. Electrical Properties ofN-Type Germanium