@article{DAN_1963_148_5_a9,
     author = {L. N. Prokopenko},
     title = {The uniqueness of the solution of the {Cauchy} problem for differential-operator equations},
     journal = {Doklady Akademii Nauk},
     pages = {1030--1033},
     publisher = {mathdoc},
     volume = {148},
     number = {5},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_148_5_a9/}
}