@article{CMFD_2023_69_2_a10,
     author = {V. S. Rykhlov},
     title = {Generalized initial-boundary problem for the wave equation with mixed derivative},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {342--363},
     publisher = {mathdoc},
     volume = {69},
     number = {2},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2023_69_2_a10/}
}