TY  - JOUR
AU  - Honghui Yin
AU  - Zuodong Yang
TI  - Multiplicity results for a class of concave-convex
elliptic systems involving  sign-changing weight functions
JO  - Annales Polonici Mathematici
PY  - 2011
SP  - 51
EP  - 71
VL  - 102
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap102-1-5/
DO  - 10.4064/ap102-1-5
LA  - en
ID  - 10_4064_ap102_1_5
ER  -