@article{DE_2002_38_1_a13,
     author = {V. I. Zhegalov and E. A. Utkina},
     title = {On a {Fourth-Order} {Partial} {Differential} {Equation} with {Three} {Independent} {Variables}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {93--97},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2002_38_1_a13/}
}