引用本文:

魏嗣明, 许洪伟. 数量曲率的第二空隙[J]. 浙江大学学报（理学版）, 2007, 34(4): 375-377.

WEI Si-Ming, XU Hong-Wei. . Journal of Zhejiang University (Science Edition), 2007, 34(4): 375-377.

链接本文:

https://www.zjujournals.com/sci/CN/    或    https://www.zjujournals.com/sci/CN/Y2007/V34/I4/375