@article{TMF_2016_188_3_a5,
     author = {B. S. Kruglikov and O. I. Morozov},
     title = {A~B\"acklund transformation between the~four-dimensional
},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {456--458},
     publisher = {mathdoc},
     volume = {188},
     number = {3},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2016_188_3_a5/}
}