TY  - JOUR
AU  - Sergio Invernizzi
AU  - Fabio Zanolin
TI  - On the Existence and Uniqueness of Periodic Solutions of Differential Delay Equations.
JO  - Mathematische Zeitschrift
PY  - 1978
SP  - 25
EP  - 38
VL  - 163
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1978__163_172738/
ID  - MZ_1978__163_172738
ER  -