Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMJ_2005__55_4_a8, author = {Davvaz, B.}, title = {Characterizations of sub-semihypergroups by various triangular norms}, journal = {Czechoslovak Mathematical Journal}, pages = {923--932}, publisher = {mathdoc}, volume = {55}, number = {4}, year = {2005}, mrnumber = {2184373}, zbl = {1081.20079}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMJ_2005__55_4_a8/} }
Davvaz, B. Characterizations of sub-semihypergroups by various triangular norms. Czechoslovak Mathematical Journal, Tome 55 (2005) no. 4, pp. 923-932. http://geodesic.mathdoc.fr/item/CMJ_2005__55_4_a8/