中国科学院数学与系统科学研究院期刊网
AMS
Approximation Theorems and Fixed Point Theorems for Various Classes of 1-set-contractive Mappings in Banach Spaces
Li Shan LIU
Acta Mathematica Sinica . 2001, (1): 103 -112 .  DOI: 10.1007/s101140000095