TY  - JOUR
AU  - S. Z. Levendorskii
TI  - Asymptotics of the spectrum of problems with constraints
JO  - Sbornik. Mathematics
PY  - 1987
SP  - 77
EP  - 95
VL  - 57
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1987_57_1_a4/
LA  - en
ID  - SM_1987_57_1_a4
ER  -