TY  - JOUR
AU  - A. S. Bratus'
TI  - Multiple eigenvalues in problems of optimization of spectral properties of systems with a finite number of degrees of freedom
JO  - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
PY  - 1986
SP  - 645
EP  - 654
VL  - 26
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZVMMF_1986_26_5_a1/
LA  - ru
ID  - ZVMMF_1986_26_5_a1
ER  -