@article{1256047474,
author = {Heller, Alex},
title = {On the homotopy theory of topogenic groups and groupoids},
journal = {Illinois J. Math.},
volume = {24},
number = {4},
year = {1980},
pages = { 576-605},
language = {en},
url = {http://dml.mathdoc.fr/item/1256047474}
}
Heller, Alex. On the homotopy theory of topogenic groups and groupoids. Illinois J. Math., Tome 24 (1980) no. 4, pp. 576-605. http://gdmltest.u-ga.fr/item/1256047474/