TY  - JOUR
AU  - Kiguradze, Ivan T.
AU  - Rachůnková, Irena
TI  - On a certain nonlinear problem for two-dimensional differential systems
JO  - Archivum mathematicum
PY  - 1980
SP  - 15
EP  - 37
VL  - 16
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1980__16_1_a2/
LA  - en
ID  - ARM_1980__16_1_a2
ER  -