TY  - JOUR
AU  - Shapour Heidarkhani
TI  - Non-trivial solutions for a class of $(p_1,\dots ,p_n)$-biharmonic
 systems with Navier boundary conditions
JO  - Annales Polonici Mathematici
PY  - 2012
SP  - 65
EP  - 76
VL  - 105
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap105-1-6/
DO  - 10.4064/ap105-1-6
LA  - en
ID  - 10_4064_ap105_1_6
ER  -