@article{1178245267,
author = {Aoki, Kiyoshi},
title = {On some invariants of mappings},
journal = {Tohoku Math. J. (2)},
volume = {6},
number = {2-3},
year = {1954},
pages = { 220-237},
language = {en},
url = {http://dml.mathdoc.fr/item/1178245267}
}
Aoki, Kiyoshi. On some invariants of mappings. Tohoku Math. J. (2), Tome 6 (1954) no. 2-3, pp. 220-237. http://gdmltest.u-ga.fr/item/1178245267/