TY  - JOUR
AU  - Bosák, Miroslav
AU  - Kučera, Milan
TI  - Bifurcation of periodic solutions to differential inequalities in $\mathbb{R}^3$
JO  - Czechoslovak Mathematical Journal
PY  - 1992
SP  - 339
EP  - 363
VL  - 42
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1992.128335/
DO  - 10.21136/CMJ.1992.128335
LA  - en
ID  - 10_21136_CMJ_1992_128335
ER  -