%0 Journal Article %A Zhang, Xiaohong %A Qin, Keyun %A Dudek, Wiesław A. %T Ultra $LI$-Ideals in lattice implication algebras and $MTL$-algebras %J Czechoslovak Mathematical Journal %D 2007 %P 591-605 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2007__57_2_a5/ %G en %F CMJ_2007__57_2_a5