@article{DE_1998_34_8_a15,
     author = {U. A. Anufrieva},
     title = {A degenerate {Cauchy} problem for a second-order equation. {A} well-posedness criterion},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1131--1133},
     publisher = {mathdoc},
     volume = {34},
     number = {8},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_8_a15/}
}