The double sequences spaces c2P(p) and c2PB(p). - Aysegül Gökhan; Rifat Çolak (Appl. Math. Comput., 2004)

Double sequence space l2∞(p). - Aysegül Gökhan; Rifat Çolak (Appl. Math. Comput., 2005)

Lacunary Statistical and Lacunary Strongly Convergence of Generalized Difference Sequences of Fuzzy Numbers. - Yavuz Altin; Mikail Et; Rifat Çolak (Comput. Math. Appl., 2006)

On lambda-statistical convergence of difference sequences of fuzzy numbers. - Mikail Et; Hifsi Altinok; Rifat Çolak (Inf. Sci., 2006)

lambda-Difference sequence spaces of fuzzy numbers. - Hifsi Altinok; Rifat Çolak; Mikail Et (Fuzzy Sets Syst., 2009)

Some matrix transformations and generalized core of double sequences. - Aysegül Gökhan; Rifat Çolak; Mohammad Mursaleen (Math. Comput. Model., 2009)

On some sets of difference sequences of fuzzy numbers. - Rifat Çolak; Yavuz Altin; Mohammad Mursaleen (Soft Comput., 2010)

On the class of λ-statistically convergent difference sequences of fuzzy numbers. - Hifsi Altinok; Rifat Çolak; Yavuz Altin (Soft Comput., 2012)

λ _d -Statistical Convergence, λ _d -statistical Boundedness and Strong left( V, λ right) _d- summability in Metric Spaces. - Emine Kayan; Rifat Çolak (ICMC, 2017)