1. Akhiezer, N.I., Glazman, I.M.: Theory of Linear Operators in Hilbert Space. Dover Publications Inc., New York (1993). (Translated from the Russian and with a preface by Merlynd Nestell, Reprint of the 1961 and 1963 translations, Two volumes bound as one)
2. Barbaroux, J.M., Combes, J.M., Hislop, P.D.: Localization near band edges for random Schrödinger operators. Helv. Phys. Acta 70(1–2), 16–43 (1997). (Papers honouring the 60th birthday of Klaus Hepp and of Walter Hunziker, Part II (Zürich, 1995))
3. Berezans’kiĭ, J.M.: Expansions in eigenfunctions of selfadjoint operators. Translations of Mathematical Monographs, vol. 17. American Mathematical Society, Providence, R.I. (1968). (Translated from the Russian by R. Bolstein, J. M. Danskin, J. Rovnyak and L. Shulman)
4. Birman, M.S., Solomjak, M.Z.: Spectral Theory of Selfadjoint Operators in Hilbert Space. Mathematics and its Applications (Soviet Series). D. Reidel Publishing Co., Dordrecht (1978). (Translated from the 1980 Russian original by S. Khrushchëv and V, Peller)
5. Böttcher, A., Silbermann, B.: Analysis of Toeplitz Operators. Springer, Berlin (1990)