@article{TMF_2018_195_1_a2,
     author = {V. E. Adler},
     title = {Integrable seven-point discrete equations and second-order evolution chains},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {27--43},
     year = {2018},
     volume = {195},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2018_195_1_a2/}
}