@article{TMF_2011_167_3_a6,
     author = {I. T. Habibullin and E. V. Gudkova},
     title = {An~algebraic method for classifying {S-integrable} discrete models},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {407--419},
     publisher = {mathdoc},
     volume = {167},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2011_167_3_a6/}
}