@article{1077490799,
author = {Whyburn, G. T.},
title = {Interior surface transformations},
journal = {Duke Math. J.},
volume = {4},
number = {1},
year = {1938},
pages = { 626-634},
language = {en},
url = {http://dml.mathdoc.fr/item/1077490799}
}
Whyburn, G. T. Interior surface transformations. Duke Math. J., Tome 4 (1938) no. 1, pp. 626-634. http://gdmltest.u-ga.fr/item/1077490799/