@article{TMF_2020_204_2_a4,
     author = {M. Yu. Nalimov and A. V. Ovsyannikov},
     title = {Convergent perturbation theory for studying phase transitions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {226--241},
     publisher = {mathdoc},
     volume = {204},
     number = {2},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2020_204_2_a4/}
}