@article{MZM_2014_96_2_a9,
     author = {I. G. Mamedov},
     title = {Nonclassical {Analog} of the {Goursat} {Problem} for a {Three-Dimensional} {Equation} with {Highest} {Derivative}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {251--260},
     publisher = {mathdoc},
     volume = {96},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2014_96_2_a9/}
}