TY - JOUR AU - Yu. A. Freiman AU - B. L. Timan TI - Analysis of quasiclassic equations in the case of a two-level system without allowance for relaxation effects JO - Doklady Akademii Nauk PY - 1966 SP - 341 EP - 344 VL - 166 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1966_166_2_a22/ LA - ru ID - DAN_1966_166_2_a22 ER -