TY  - JOUR
AU  - A. N. Kochubei
TI  - The expansion in root vectors of abstract differential operators
JO  - Differencialʹnye uravneniâ
PY  - 1975
SP  - 1341
EP  - 1342
VL  - 11
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1975_11_7_a21/
LA  - ru
ID  - DE_1975_11_7_a21
ER  -