TY  - JOUR
AU  - Qi, Aiqin
AU  - Liu, Yansheng
TI  - Monotone iterative techniques and a periodic boundary value problem for first-order differential equations with a functional argument.
JO  - Georgian mathematical journal
PY  - 2000
SP  - 373
EP  - 378
VL  - 7
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/GMJ_2000__7_2_48669/
LA  - en
ID  - GMJ_2000__7_2_48669
ER  -