TY  - JOUR
AU  - V. I. Matsaev
TI  - Volterra operators obtained from self-adjoint operators by perturbation
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 810
EP  - 813
VL  - 139
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a9/
LA  - ru
ID  - DAN_1961_139_4_a9
ER  -