@article{TMF_1987_71_3_a10,
     author = {V. E. Zubkus and \`E. \`E. Tornau},
     title = {Thermodynamic properties of 20-vertex models},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {410--416},
     publisher = {mathdoc},
     volume = {71},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1987_71_3_a10/}
}