@article{IVM_2012_1_a9,
     author = {M. Kh. Ruziev},
     title = {Problems with shifts for mixed elliptic-hyperbolic equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {72--82},
     publisher = {mathdoc},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2012_1_a9/}
}