@article{bwmeta1.element.bwnjournal-article-fmv32i1p14bwm,
author = {Samuel Eilenberg},
title = {On the relation between the fundamental group on a space and the higher homotopy groups},
journal = {Fundamenta Mathematicae},
volume = {32},
year = {1939},
pages = {167-175},
zbl = {0021.16204},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv32i1p14bwm}
}
Eilenberg, Samuel. On the relation between the fundamental group on a space and the higher homotopy groups. Fundamenta Mathematicae, Tome 32 (1939) pp. 167-175. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv32i1p14bwm/