%0 Journal Article
%A Davvaz, B.
%T Characterizations of sub-semihypergroups by various triangular norms
%J Czechoslovak Mathematical Journal
%D 2005
%P 923-932
%V 55
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMJ_2005__55_4_a8/
%G en
%F CMJ_2005__55_4_a8