TY  - JOUR
AU  - S. P. Shishatskii
TI  - The correctness of boundary problems for a second-order differential equation with a self-adjoint negative operator in a Hilbert space
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1968
SP  - 81
EP  - 85
VL  - 2
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1968_2_2_a8/
LA  - ru
ID  - FAA_1968_2_2_a8
ER  -