中国科学院数学与系统科学研究院期刊网
On Ekeland’s Variational Principle for Set-Valued Mappings
Sheng-jie Li, Wen-yan Zhang
On Ekeland’s Variational Principle for Set-Valued Mappings
Sheng-jie Li, Wen-yan Zhang
应用数学学报(英文版) . 2007, (1): 141 -148 .