TY  - JOUR
AU  - L. F. Yukhno
TI  - Generalization of the Wittrick--Williams method to nonlinear spectral problems with a multiple spectrum
JO  - Differencialʹnye uravneniâ
PY  - 1995
SP  - 1261
EP  - 1264
VL  - 31
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1995_31_7_a20/
LA  - ru
ID  - DE_1995_31_7_a20
ER  -