TY  - JOUR
AU  - S. Ya. Havinson
TI  - Some problems concerning the completeness of systems
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 793
EP  - 796
VL  - 137
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_137_4_a9/
LA  - ru
ID  - DAN_1961_137_4_a9
ER  -