%0 Journal Article %A S. V. Tyablikov %A V. A. Moskalenko %T The method of quantum Green's functions in the theory of many-phonon transitions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1961 %P 267-283 %V 64 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1961_64_a15/ %G ru %F TM_1961_64_a15