@article{1077488858,
author = {Whyburn, G. T.},
title = {Generalized perfect sets},
journal = {Duke Math. J.},
volume = {1},
number = {1},
year = {1935},
pages = { 35-38},
language = {en},
url = {http://dml.mathdoc.fr/item/1077488858}
}
Whyburn, G. T. Generalized perfect sets. Duke Math. J., Tome 1 (1935) no. 1, pp. 35-38. http://gdmltest.u-ga.fr/item/1077488858/