1. Lifshits, E.M., Pitaevsky, L.P., Statisticheskaya fizika (Statistical Physics), Moscow: Nauka, 1978, part 2.
2. Pines, D. and Nozieres, Ph., The Theory of Quantum Liquids, New York: Benjamin, 1966.
3. Backman, D.-O., Brown, G.E., and Niskanen, J.A., Phys. Rep., 1985, vol. 124, p. 1; Speth, J., Werner, E., and Wild, W., Phys. Rep., 1977, vol. 33, p. 127.
4. Migdal, A.B., Rev. Mod. Phys., 1978, vol. 50, p. 107; Migdal, A.B., Teoriya konechnykh fermi-sistem (Theory of Finite Fermi Systems), Moscow: Nauka, 1983.
5. Migdal, A.B., Voskresenskii, D.N., Sapershtein, E.E., and Troitskii, M.A., Pionnye stepeni svobody v yadernom veshchestve (Pionic Degrees of Freedom in Nuclear Matter), Moscow: Nauka, 1991; Migdal, A.B., Voscresenskii, D.N., Saperstein, E.E., and Troitskii, M.A., Phys. Rep., 1990, vol. 192, p. 179.