@article{IVM_2009_11_a4,
     author = {K. B. Sabitov and A. Kh. Suleimanova},
     title = {The {Dirichlet} problem for a~mixed-type equation with characteristic degeneration in a~rectangular domain},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {43--52},
     publisher = {mathdoc},
     number = {11},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2009_11_a4/}
}