TY  - JOUR
AU  - M. I. Sumin
TI  - On ill-posed problems, extremals of the Tikhonov functional and the regularized Lagrange principles
JO  - Vestnik rossijskih universitetov. Matematika
PY  - 2022
SP  - 58
EP  - 79
VL  - 27
IS  - 137
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VTAMU_2022_27_137_a4/
LA  - ru
ID  - VTAMU_2022_27_137_a4
ER  -