On some seminormed sequence spaces defined by a modulus function Yavuz Altin; Hifsi Altinok; Rifat Çolak — 2006 Kragujevac Journal of Mathematics
On some difference sequence sets and their topological properties. Çolak, Rifat; Et, Mikâil — 2005 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
Some geometric inequalities in a new Banach sequence space. Mursaleen, M.; Çolak, Rifat; Et, Mikail — 2007 Journal of Inequalities and Applications [electronic only]