中国科学院数学与系统科学研究院期刊网
AMS
On Fixed Point and Almost Fixed Point Problems of Lower Semicontinuous Type Multivalued Mappings
Liang Yu LUAN, Xian WU
Acta Mathematica Sinica . 2005, (5): 1027 -1034 .  DOI: 10.1007/s10114-005-0449-0