1. V. A. Malyshev and R. A. Minlos,Linear Operators in Infinite-Particle Systems [in Russian], Nauka, Moscow (1994).
2. A. I. Mogilner, “Hamiltonians in solid state physics as multi-particle discrete Schrödinger operators: problems and results,”Adv. Soviet. Math.,5, 139 (1991).
3. M. Reed and B. Simon,Methods of Modern Mathematical Physics, Vol. 4,Analysis of Operators, Academic Press, New York-San Francisco-London (1978).
4. A. M. Melnikov and A. I. Mogilner,J. Phys. A,24, 3671 (1991).
5. Yu. V. Zhukov, “Iorio-O'Carroll theorem for the general lattice Hamiltonians,” in:Proceedings of I. G. Petrovskii Seminar [in Russian], Vol. 20, Moscow.