@article{IVM_2017_1_a0,
     author = {A. N. Zarubin},
     title = {Tricomi problem for $q$-difference analog of anticipatory-retarding equation of mixed type},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--11},
     publisher = {mathdoc},
     number = {1},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2017_1_a0/}
}