%0 Journal Article %A N. N. Bogolyubov (Jr.) %A A. S. Shumovskii %T Collective quantum effects in the problem of interaction of electromagnetic radiation with a~medium %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1989 %P 79-88 %V 191 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1989_191_a6/ %G ru %F TM_1989_191_a6