Nullnorms on bounded lattices. - Funda Karaçal; Mehmet Akif Ince; Radko Mesiar (Inf. Sci., 2015)

Medians and nullnorms on bounded lattices. - Mehmet Akif Ince; Funda Karaçal; Radko Mesiar (Fuzzy Sets Syst., 2016)

t-closure Operators. - Mehmet Akif Ince; Funda Karaçal (Int. J. Gen. Syst., 2019)

Determination of the Smallest-Greatest Uni-Nullnorms and Null-Uninorms on an Arbitrary Bounded Lattice L. - Mehmet Akif Ince; Funda Karaçal (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2023)