1. Başarır, M., Sonalcan, O.: On some double sequence spaces. J. Indian Acad. Math. 21, 193–200 (1999)
2. Bromwich, T.J.: An Introduction to the Theory of Infinite Series. Macmillan Co., New York (1965)
3. Esi, A.: Some new type generalized difference sequence spaces defined by a modulus. An. Univ. Vest. Timiş., Ser. Mat.-Inform. XLII(2), 27–34 (2004)
4. Esi, A.: On some generalized new type difference sequence spaces defined by a modulus function. Acta Math. Vietnam. 35, 243–252 (2010)
5. Esi, A., Tripathy, B.C.: On some generalized new type difference sequence spaces defined by a modulus function in a seminormed space. Fasc. Math. 40, 15–24 (2008)