@article{IVM_2015_11_a3,
     author = {N. V. Martem'yanova},
     title = {The {Dirichlet} problem for an equation of mixed elliptic-hyperbolic type with variable potential},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {44--53},
     publisher = {mathdoc},
     number = {11},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2015_11_a3/}
}