@article{1077471932,
author = {Shih, Hsiang-Lin},
title = {Mappings of $2$ -manifolds into a space},
journal = {Duke Math. J.},
volume = {10},
number = {1},
year = {1943},
pages = { 179-207},
language = {en},
url = {http://dml.mathdoc.fr/item/1077471932}
}
Shih, Hsiang-Lin. Mappings of $2$ -manifolds into a space. Duke Math. J., Tome 10 (1943) no. 1, pp. 179-207. http://gdmltest.u-ga.fr/item/1077471932/