TY  - JOUR
AU  - Daqing Jiang
AU  - Lingbin Kong
TI  - A monotone method for constructing extremal solutions
to second order periodic boundary value problems
JO  - Annales Polonici Mathematici
PY  - 2001
SP  - 279
EP  - 286
VL  - 76
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap76-3-6/
DO  - 10.4064/ap76-3-6
LA  - en
ID  - 10_4064_ap76_3_6
ER  -