TY - JOUR AU - N. N. Bogolyubov (Jr.) AU - A. S. Shumovskii TI - Collective quantum effects in the problem of interaction of electromagnetic radiation with a~medium JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1989 SP - 79 EP - 88 VL - 191 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1989_191_a6/ LA - ru ID - TM_1989_191_a6 ER -