@article{DAN_1965_162_4_a6,
     author = {L. I. Kovalenko},
     title = {A difference method and the uniqueness of the generalised solution for the {Tricomi} problem},
     journal = {Doklady Akademii Nauk},
     pages = {751--754},
     publisher = {mathdoc},
     volume = {162},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_4_a6/}
}