@article{DAN_1981_260_3_a29,
     author = {N. L. Smirnova and \`E. M. Berzon and Yu. S. Konyaev and N. V. Belov},
     title = {On the phases of state diagrams},
     journal = {Doklady Akademii Nauk},
     pages = {636--639},
     publisher = {mathdoc},
     volume = {260},
     number = {3},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_3_a29/}
}