@article{1077466274,
author = {Strother, Wayman L.},
title = {Multi-homotopy},
journal = {Duke Math. J.},
volume = {22},
number = {1},
year = {1955},
pages = { 281-285},
language = {en},
url = {http://dml.mathdoc.fr/item/1077466274}
}
Strother, Wayman L. Multi-homotopy. Duke Math. J., Tome 22 (1955) no. 1, pp. 281-285. http://gdmltest.u-ga.fr/item/1077466274/