%0 Journal Article %A V. F. Los' %A A. G. Martynenko %T Closed kinetic equation for the density matrix of a~subsystem interacting with phonons %J Teoretičeskaâ i matematičeskaâ fizika %D 1983 %P 313-320 %V 55 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1983_55_2_a14/ %G ru %F TMF_1983_55_2_a14