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中国科学院数学与系统科学研究院期刊网
ISSN 0583-1431 CN 11-2039/O1
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中文
ON THE POINCARE'S GROUPS AND THE EXTENDED UNIVERSAL COVERINGS OF CLOSED ORIENTABLE TWO-MANIFOLDS
TSAI-HAN KIANG
Acta Mathematica Sinica, Chinese Series . 1936, (
1
): 93 -153 . DOI: 10.12386/A1936sxxb0007