TY  - JOUR
AU  - V. I. Plotnikov
AU  - V. I. Sumin
TI  - Problems of the stability of nonlinear Goursat--Darboux systems
JO  - Differencialʹnye uravneniâ
PY  - 1972
SP  - 845
EP  - 856
VL  - 8
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1972_8_5_a13/
LA  - ru
ID  - DE_1972_8_5_a13
ER  -