中国科学院数学与系统科学研究院期刊网
AMS
On Universally Left-stability of ε-Isometry
Ling Xin BAO, Li Xin CHENG, Qing Jin CHENG, Duan Xu DAI
Acta Mathematica Sinica . 2013, (11): 2037 -2046 .  DOI: 10.1007/s10114-013-2585-2