@article{CMFD_2024_70_3_a8,
     author = {V. S. Rykhlov},
     title = {Classical solution of the initial-boundary value problem for the wave equation with mixed derivative},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {451--486},
     publisher = {mathdoc},
     volume = {70},
     number = {3},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2024_70_3_a8/}
}