@article{UFA_2023_15_3_a5,
     author = {M. N. Kuznetsova},
     title = {On nonlinear hyperbolic systems related by {B\"acklund} transforms},
     journal = {Ufa mathematical journal},
     pages = {80--87},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2023_15_3_a5/}
}