@article{UFA_2023_15_2_a2,
     author = {Yu. G. Voronova and A. V. Zhiber},
     title = {On a class of hyperbolic equations with third-order integrals},
     journal = {Ufa mathematical journal},
     pages = {20--30},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2023_15_2_a2/}
}