TY  - JOUR
AU  - V. S. Mokeichev
TI  - Eigenvalues of boundary value problems. Transformations of boundary value problems to boundary value problems with small coefficients
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 222
EP  - 228
VL  - 25
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_2_a6/
LA  - ru
ID  - DE_1989_25_2_a6
ER  -