TY  - JOUR
AU  - V. F. Butuzov
TI  - On singularly perturbed systems of~ODE with a~multiple root of~the degenerate equation
JO  - Izvestiya. Mathematics 
PY  - 2020
SP  - 262
EP  - 290
VL  - 84
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2020_84_2_a2/
LA  - en
ID  - IM2_2020_84_2_a2
ER  -