TY  - JOUR
AU  - Liu, Yuji
TI  - Periodic solutions of second order nonlinear functional difference equations
JO  - Archivum mathematicum
PY  - 2007
SP  - 67
EP  - 74
VL  - 43
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_2007__43_1_a6/
LA  - en
ID  - ARM_2007__43_1_a6
ER  -