R-Polynomials of Finite Monoids of Lie Type. - Kürsat Aker; Mahir Bilen Can; Müge Taskin (Int. J. Algebra Comput., 2010)

A New Combinatorial Identity for Catalan Numbers. - Kürsat Aker; Aysin Erkan Gursoy (Ars Comb., 2017)