@article{DE_1998_34_3_a9,
     author = {G. V. Demidenko and S. I. Yanov},
     title = {On mixed boundary value problems in a quarter-space for a class of systems not of {Cauchy{\textendash}Kovalevskaya} type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {348--358},
     year = {1998},
     volume = {34},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_3_a9/}
}