Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1965__6_4_a3, author = {Havel, V\'aclav}, title = {Construction of certain systems with two compositions}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {413--428}, publisher = {mathdoc}, volume = {06}, number = {4}, year = {1965}, mrnumber = {0194544}, zbl = {0136.00802}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1965__6_4_a3/} }
Havel, Václav. Construction of certain systems with two compositions. Commentationes Mathematicae Universitatis Carolinae, Tome 06 (1965) no. 4, pp. 413-428. http://geodesic.mathdoc.fr/item/CMUC_1965__6_4_a3/