@article{TMF_1982_51_3_a4,
     author = {N. M. Bogolyubov},
     title = {On the physical sector of the lattice {sine-Gordon} model},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {344--354},
     publisher = {mathdoc},
     volume = {51},
     number = {3},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1982_51_3_a4/}
}