@article{bwmeta1.element.bwnjournal-article-fmv48i3p271bwm,
author = {M. Fort},
title = {Extension of the set on which mappings into Sn are homotopic},
journal = {Fundamenta Mathematicae},
volume = {48},
year = {1960},
pages = {271-276},
zbl = {0095.37503},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv48i3p271bwm}
}
Fort, M. Extension of the set on which mappings into Sn are homotopic. Fundamenta Mathematicae, Tome 48 (1960) pp. 271-276. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv48i3p271bwm/