@article{TMF_1973_16_3_a9,
     author = {B. I. Sadovnikov and V. K. Fedyanin},
     title = {Bogolyubov's inequalities in systems of many interacting particles with broken symmetry},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {368--393},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1973_16_3_a9/}
}