Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1957__7_3_a1, author = {\v{S}ulka, Robert}, title = {O izomorfiszme topologick\'ych grupoidov}, journal = {Mathematica slovaca}, pages = {143--157}, publisher = {mathdoc}, volume = {07}, number = {3}, year = {1957}, mrnumber = {0098794}, language = {sl}, url = {http://geodesic.mathdoc.fr/item/MASLO_1957__7_3_a1/} }
Šulka, Robert. O izomorfiszme topologických grupoidov. Mathematica slovaca, Tome 07 (1957) no. 3, pp. 143-157. http://geodesic.mathdoc.fr/item/MASLO_1957__7_3_a1/