Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1958__70_169759, author = {Karl Heinrich Hofmann}, title = {Topologische {Loops.}}, journal = {Mathematische Zeitschrift}, pages = {13--37}, publisher = {mathdoc}, volume = {70}, year = {1958}, zbl = {0095.02701}, url = {http://geodesic.mathdoc.fr/item/MZ_1958__70_169759/} }
Karl Heinrich Hofmann. Topologische Loops.. Mathematische Zeitschrift, Tome 70 (1958), pp. 13-37. http://geodesic.mathdoc.fr/item/MZ_1958__70_169759/