TY  - JOUR
AU  - G. A. Voropaeva
TI  - The theorem of M.\,V.~Keldysh on $n$-fold completeness, and the convergence of the solution of a~Cauchy difference problem
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1970
VL  - 25
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1970_25_3_a18/
LA  - ru
ID  - RM_1970_25_3_a18
ER  -