@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/