@article{IM2_1976_10_2_a11,
     author = {V. M. Gercik},
     title = {Conditions for the nonuniqueness of the {Gibbs} state for lattice models having},
     journal = {Izvestiya. Mathematics},
     pages = {429--443},
     year = {1976},
     volume = {10},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1976_10_2_a11/}
}