@article{VMJ_2015_17_4_a4,
     author = {I. G. Mamedov},
     title = {On a~nonclassical interpretation of the four-dimensional {Goursat} problem for one hyberbolic equation},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {59--66},
     year = {2015},
     volume = {17},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2015_17_4_a4/}
}