@article{TMF_2008_155_1_a2,
     author = {N. M. Bogolyubov},
     title = {Four-vertex model and random tilings},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {25--38},
     publisher = {mathdoc},
     volume = {155},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2008_155_1_a2/}
}