TY - JOUR AU - V. A. Burdov TI - Some properties of stationary states of two-level systems JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1996 SP - 69 EP - 78 VL - 108 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1996_108_1_a4/ LA - ru ID - TMF_1996_108_1_a4 ER -