@article{DE_1970_6_4_a9,
     author = {A. F. Andreev},
     title = {The local diagram of an equilibrium state},
     journal = {Differencialʹnye uravneni\^a},
     pages = {677--686},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_4_a9/}
}