TY  - JOUR
AU  - Hongliang Liu
AU  - Haibo Chen
AU  - Gangwei Wang
TI  - Multiplicity for a 4-sublinear Schrödinger–Poisson system with sign-changing potential via Morse theory
JO  - Comptes Rendus. Mathématique
PY  - 2016
SP  - 75
EP  - 80
VL  - 354
IS  - 1
PB  - Elsevier
DO  - 10.1016/j.crma.2015.10.018
LA  - en
ID  - CRMATH_2016__354_1_75_0
ER  -