@article{1028999722,
author = {Spanier, E.},
title = {The homotopy excision theorem.},
journal = {Michigan Math. J.},
volume = {14},
number = {1},
year = {1967},
pages = { 245-255},
language = {en},
url = {http://dml.mathdoc.fr/item/1028999722}
}
Spanier, E. The homotopy excision theorem.. Michigan Math. J., Tome 14 (1967) no. 1, pp. 245-255. http://gdmltest.u-ga.fr/item/1028999722/