Modified Ordinal Sums of Triangular Norms and Triangular Conorms on Bounded Lattices. - Ümit Ertugrul; Funda Karaçal; Radko Mesiar (Int. J. Intell. Syst., 2015)

Ordering based on uninorms. - Ümit Ertugrul; M. Nesibe Kesicioglu; Funda Karaçal (Inf. Sci., 2016)

Characterization of uninorms on bounded lattices. - Funda Karaçal; Ümit Ertugrul; Radko Mesiar (Fuzzy Sets Syst., 2017)

An equivalence relation based on the U-partial order. - M. Nesibe Kesicioglu; Ümit Ertugrul; Funda Karaçal (Inf. Sci., 2017)

Notes on locally internal uninorm on bounded lattices. - Gül Deniz Çayli; Ümit Ertugrul; Tuncay Köroglu; Funda Karaçal (Kybernetika, 2017)

Construction of nullnorms on bounded lattices and an equivalence relation on nullnorms. - Ümit Ertugrul (Fuzzy Sets Syst., 2018)

A Construction Method for t-norms on Bounded Lattices. - Funda Karaçal; Ümit Ertugrul; M. Nesibe Kesicioglu (AGOP, 2019)

On Some Properties of Generalized Convex Combination of Triangular Norms. - Funda Karaçal; M. Nesibe Kesicioglu; Ümit Ertugrul (AGOP, 2019)

Some new construction methods for t-norms on bounded lattices. - Ümit Ertugrul; M. Nesibe Kesicioglu; Funda Karaçal (Int. J. Gen. Syst., 2019)

Construction methods for uni-nullnorms and null-uninorms on bounded lattice. - Ümit Ertugrul; M. Nesibe Kesicioglu; Funda Karaçal (Kybernetika, 2019)

An extension method for t-norms on subintervals to t-norms on bounded lattices. - Funda Karaçal; Ümit Ertugrul; M. Nesibe Kesicioglu (Kybernetika, 2019)

Some notes on U-partial order. - M. Nesibe Kesicioglu; Ümit Ertugrul; Funda Karaçal (Kybernetika, 2019)

Generalized convex combination of triangular norms on bounded lattices. - Funda Karaçal; M. Nesibe Kesicioglu; Ümit Ertugrul (Int. J. Gen. Syst., 2020)

Ordinal sums of triangular norms on bounded lattices. - Ümit Ertugrul; Merve Yesilyurt (Inf. Sci., 2020)

The implications obtained by two given implications on bounded lattices. - Funda Karaçal; M. Nesibe Kesicioglu; Ümit Ertugrul (Int. J. Gen. Syst., 2021)

Generating methods for principal topologies on bounded lattices. - Funda Karaçal; Ümit Ertugrul; M. Nesibe Kesicioglu (Kybernetika, 2021)

Some further construction methods for uninorms on bounded lattices. - Gül Deniz Çayli; Ümit Ertugrul; Funda Karaçal (Int. J. Gen. Syst., 2023)

Congruence Relations and Direct Decomposition of Uninorms on Bounded Lattices. - Funda Karaçal; Ümit Ertugrul; Samet Arpaci; M. Nesibe Kesicioglu (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2023)

Implication Construction Methods on Bounded Lattices. - Ümit Ertugrul; Funda Karaçal; Kübra Karacair (EUSFLAT (2), 2025)