@article{TMF_1973_15_3_a4,
     author = {A. N. Vasil'ev},
     title = {Consequences of the convexity of {Legendre} transformations (generalized {Goldstone} theorem)},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {320--331},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1973_15_3_a4/}
}