TY  - JOUR
AU  - K. S. Matviychuk
TI  - On a comparison method for differential equations close to hyperbolic ones
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 2009
EP  - 2011
VL  - 20
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_11_a27/
LA  - ru
ID  - DE_1984_20_11_a27
ER  -