TY - JOUR AU - G. O. Balabanyan TI - Use of the method of ordered operators in the theory of laser systems. Derivation of asymptotically exact equations for radiation.~I JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1983 SP - 130 EP - 146 VL - 54 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1983_54_1_a11/ LA - ru ID - TMF_1983_54_1_a11 ER -