TY - JOUR AU - K. G. Klimenko TI - Phase transitions in the $O(N)$ model with several coupling constants JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1987 SP - 125 EP - 134 VL - 70 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1987_70_1_a9/ LA - ru ID - TMF_1987_70_1_a9 ER -