Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1969__19_2_a2, author = {Havel, V\'aclav}, title = {Ternary halfgroupoids and coordinatization}, journal = {Mathematica slovaca}, pages = {102--109}, publisher = {mathdoc}, volume = {19}, number = {2}, year = {1969}, mrnumber = {0301128}, zbl = {0186.54301}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1969__19_2_a2/} }
Havel, Václav. Ternary halfgroupoids and coordinatization. Mathematica slovaca, Tome 19 (1969) no. 2, pp. 102-109. http://geodesic.mathdoc.fr/item/MASLO_1969__19_2_a2/