@article{IVM_2001_11_a9,
     author = {V. I. Zhegalov and E. A. Utkina},
     title = {The {Goursat} problem for a~three-dimensional equation with a~higher derivative},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--81},
     publisher = {mathdoc},
     number = {11},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_11_a9/}
}