@article{VMJ_2024_26_2_a9,
     author = {I. V. Rakhmelevich},
     title = {On {Laplace} invariants of a two-dimensional hyperbolic equation with mixed derivative and quadratic nonlinearities},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {113--121},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2024_26_2_a9/}
}