@article{TMF_2011_167_1_a1,
     author = {A. V. Mikhailov and J. P. Wang and P. Xenitidis},
     title = {Recursion operators, conservation laws, and integrability conditions for difference equations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {23--49},
     year = {2011},
     volume = {167},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2011_167_1_a1/}
}