TY - JOUR AU - V. A. Arzumanian AU - B. S. Nakhapetian AU - S. K. Pogosyan TI - Asymptotic expansion of~the logarithm of~the partition function in~spin lattice systems that possess a~vacuum JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1989 SP - 175 EP - 184 VL - 81 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1989_81_2_a1/ LA - ru ID - TMF_1989_81_2_a1 ER -