@article{bwmeta1.element.bwnjournal-article-fmv66i1p25bwm,
author = {J. Dugundji},
title = {Modified Vietoris theorems for homotopy},
journal = {Fundamenta Mathematicae},
volume = {68},
year = {1970},
pages = {223-235},
zbl = {0196.26801},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv66i1p25bwm}
}
Dugundji, J. Modified Vietoris theorems for homotopy. Fundamenta Mathematicae, Tome 68 (1970) pp. 223-235. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv66i1p25bwm/