中国科学院数学与系统科学研究院期刊网
KKM Type Theorems and Minimax Inequalities and Saddle Point Theorems in Generalized Convex Spaces
Xie Ping DING
Acta Mathematica Sinica, Chinese Series . 2004, (4): 711 -722 .  DOI: 10.12386/A2004sxxb0090