Solution of an open problem on pseudo-Archimedean t-norms. - Kun-Lun Zhang; Dong-Hai Li; Li-Xia Song (Inf. Sci., 2008)

On Nilpotent Matrices over Bounded Distributive Lattice. - Li-Xia Song (IITSI, 2009)

On finite relation equations with sup-conjunctor composition over a complete lattice. - Kun-Lun Zhang; Dong-Hai Li; Li-Xia Song (Fuzzy Sets Syst., 2009)