Classification of 2-manifolds with singular points
Author:
Chien-Ke Lu
Journal:
Bull. Amer. Math. Soc. 55 (1949), 1093-1098
DOI:
https://doi.org/10.1090/S0002-9904-1949-09331-X
MathSciNet review:
0032995
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Additional Information
DOI:
https://doi.org/10.1090/S0002-9904-1949-09331-X