@article{1200687719,
author = {Nagumo, Mitio},
title = {A note on the theory of degree of mapping in Euclidean spaces},
journal = {Osaka Math. J.},
volume = {4},
number = {1},
year = {1952},
pages = { 1-9},
language = {en},
url = {http://dml.mathdoc.fr/item/1200687719}
}
Nagumo, Mitio. A note on the theory of degree of mapping in Euclidean spaces. Osaka Math. J., Tome 4 (1952) no. 1, pp. 1-9. http://gdmltest.u-ga.fr/item/1200687719/