TY  - JOUR
AU  - Mehri, Bahman
TI  - On the existence of periodic boundary conditions for nonlinear second order differential equations
JO  - Časopis pro pěstování matematiky
PY  - 1976
SP  - 256
EP  - 262
VL  - 101
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CPM.1976.117918/
DO  - 10.21136/CPM.1976.117918
LA  - en
ID  - 10_21136_CPM_1976_117918
ER  -