TY  - JOUR
AU  - Mehri, B.
TI  - Periodic solution of certain second order differential equation
JO  - Archivum mathematicum
PY  - 1980
SP  - 39
EP  - 44
VL  - 16
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1980__16_1_a3/
LA  - en
ID  - ARM_1980__16_1_a3
ER  -