TY - JOUR AU - A. N. Vasil'ev TI - Consequences of the convexity of Legendre transformations (generalized Goldstone theorem) JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1973 SP - 320 EP - 331 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1973_15_3_a4/ LA - ru ID - TMF_1973_15_3_a4 ER -