TY  - JOUR
AU  - Neuman, František
TI  - A note on differential equations with periodic solutions
JO  - Archivum mathematicum
PY  - 1970
SP  - 189
EP  - 192
VL  - 6
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/ARM_1970_6_3_a5/
LA  - en
ID  - ARM_1970_6_3_a5
ER  -