On 2-Spheres in 4-Manifolds
- 期刊名称Proceedings of the National Academy of Sciences of the United States of America
- 作者Michel A. Kervaire and John W. Milnor
- 卷第47卷
- 期第10期
- 印刷ISSN0027-8424
- 文件大小290.87KB
- 发表时间1961-10-15
- DOI10.2307/71304
- 页码1651-1657
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