@article{1200688066,
author = {Kuramochi, Zenjiro},
title = {On covering surfaces},
journal = {Osaka Math. J.},
volume = {5},
number = {1},
year = {1953},
pages = { 155-201},
language = {en},
url = {http://dml.mathdoc.fr/item/1200688066}
}
Kuramochi, Zenjiro. On covering surfaces. Osaka Math. J., Tome 5 (1953) no. 1, pp. 155-201. http://gdmltest.u-ga.fr/item/1200688066/