@article{IVM_2011_2_a5,
     author = {I. G. Mamedov},
     title = {One {Goursat} problem in {a~Sobolev} space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {54--64},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2011_2_a5/}
}