中国科学院数学与系统科学研究院期刊网
Fixed Point Theorem About Cone Expansion and Compression of Concave Functional Type
Dong Dong SUN, Guo Wei ZHANG, Tie ZHANG
Acta Mathematica Sinica, Chinese Series . 2010, (5): 847 -852 .  DOI: 10.12386/A2010sxxb0094