Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1980__30_2_a8, author = {\v{S}ipo\v{s}, J\'an}, title = {On convergence groupoids}, journal = {Mathematica slovaca}, pages = {163--173}, publisher = {mathdoc}, volume = {30}, number = {2}, year = {1980}, mrnumber = {587242}, zbl = {0441.20036}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1980__30_2_a8/} }
Šipoš, Ján. On convergence groupoids. Mathematica slovaca, Tome 30 (1980) no. 2, pp. 163-173. http://geodesic.mathdoc.fr/item/MASLO_1980__30_2_a8/