@article{DE_1986_22_8_a20,
     author = {N. Radjabov and K. S. Boltaev},
     title = {Representation of the manifold of solutions and investigation of boundary value problems of {Cauchy{\textendash}Dirichlet} type for a class of equations of mixed type with a singular line},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1451--1452},
     year = {1986},
     volume = {22},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_8_a20/}
}