@第{zbMATH04186610条，作者={Nguyen To Nhu和Ta Khac Cu}，Title={保持{ANR}-属性度量空间}，FJournal={美国数学学会会刊}，期刊={Proc.Am.Math.Soc.}，ISSN={0002-9939}，体积={106}，数字={2}，Pages＝{493-501}，年份＝{1989}，语言={英语}，DOI={10.2307/2048832}，关键词={54C55,60B05,58D15,58B05,57N20,37-XX}，zbMATH={4186610}，Zbl={0719.54023}}