1. S. I. Pekar, Investigations on Electron Theory of Crystals (GITTL, Moscow, 1951; Report AEC-tr-5575, U.S. Atomic Energy Commission, 1963).
2. I. P. Ipatova, A. Yu. Maslov, and O. V. Proshina, Surf. Sci. 507–510, 598 (2002).
3. Al. L. Éfros and A. L. Éfros, Fiz. Tekh. Poluprovodn. (Leningrad) 16, 1209 (1982) [Sov. Phys. Semicond. 16, 772 (1982)].
4. J. M. Luttinger, Phys. Rev. 102, 1030 (1956).
5. L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 3: Quantum Mechanics: Non-Relativistic Theory, 5th ed. (Fizmatlit, Moscow, 2004; Butterworth, Oxford, 1991).