@article{TMF_1975_25_3_a6,
     author = {S. A. Pirogov and Ya. G. Sinai},
     title = {Phase diagrams of classical lattice systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {358--369},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_25_3_a6/}
}