中国科学院数学与系统科学研究院期刊网
Existence of Multiple Solutions for a Quasilinear Elliptic System Involving Sign-changing Weight Functions
LI Yuanxiao, GAO WENJIE
Acta Mathematicae Applicatae Sinica . 2018, (1): 71 -82 .  DOI: 10.12387/C2018006