TY  - JOUR
AU  - I. A. Novosel'skii
TI  - Some criteria for the completeness of the system of root-vectors of a linear operator in space with two norms
JO  - Doklady Akademii Nauk
PY  - 1966
SP  - 747
EP  - 750
VL  - 167
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1966_167_4_a5/
LA  - ru
ID  - DAN_1966_167_4_a5
ER  -