TY  - JOUR
AU  - V. A. Il'in
AU  - E. I. Moiseev
TI  - On the systems consisting of subsets of root function of two distinct boundary value problems
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1992
SP  - 219
EP  - 230
VL  - 201
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1992_201_a10/
LA  - ru
ID  - TM_1992_201_a10
ER  -