中国科学院数学与系统科学研究院期刊网
A Fixed Point Theorem for Sequential Contraction Operators with Application
Zhan Dong LIANG(1),Wen Xia WAN
Acta Mathematica Sinica, Chinese Series . 2004, (1): 173 -180 .  DOI: 10.12386/A2004sxxb0023