TY  - JOUR
AU  - Yu. L. Shmul'yan
TI  - Hellinger's operator integral and some of its uses
JO  - Doklady Akademii Nauk
PY  - 1958
SP  - 722
EP  - 725
VL  - 120
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1958_120_4_a9/
LA  - ru
ID  - DAN_1958_120_4_a9
ER  -