@article{DAN_1991_316_5_a16,
     author = {V. A. Zhelnorovich},
     title = {On obtaining equations of state by means of a variational},
     journal = {Doklady Akademii Nauk},
     pages = {1092--1096},
     publisher = {mathdoc},
     volume = {316},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_5_a16/}
}