@article{bwmeta1.element.bwnjournal-article-fmv115i1p17bwm,
author = {David Sprows},
title = {Homeotopy groups of punctured spheres with holes},
journal = {Fundamenta Mathematicae},
volume = {115},
year = {1983},
pages = {207-212},
zbl = {0521.57007},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv115i1p17bwm}
}
Sprows, David. Homeotopy groups of punctured spheres with holes. Fundamenta Mathematicae, Tome 115 (1983) pp. 207-212. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv115i1p17bwm/