1. L. A. Pastur, "Spectra of random Jacobi matrices and Schrödinger equations with random potentials on the whole axis," Preprint, FTINT Akad. Nauk UkrSSR, Khar'kov (1974).
2. A. Ya. Gordon, "On the point spectrum of a one-dimensional Schrödinger operator," Usp. Mat. Nauk,31, No. 4, 257?258 (1976).
3. E. I. Dinaburg and Ya. G. Sinai, "On the one-dimensional Schrödinger equation with a quasiperiodic potential," Funkts. Anal. Prilozhen.,9, No. 4, 8?21 (1975).
4. N. F. Mott and E. A. Davis, Electronic Processes in Non-Crystalline Materials, Oxford Univ. Press (1971).
5. B. I. Halperin, "Properties of a particle in a one-dimensional random potential," Adv. Chem. Phys.,13, 123?178 (1967).