中国科学院数学与系统科学研究院期刊网
AMS
Existence and Stability of Positive Solutions for an Elliptic Cooperative System
Li Jun HEI, Jian Hua WU
Acta Mathematica Sinica . 2005, (5): 1113 -1120 .  DOI: 10.1007/s10114-004-0467-3