On neighborhoods of a certain class of complex order defined by Ruscheweyh derivative operator. Özkan, Öznur; Altintas, Osman — 2006 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
Fractional calculus and p -valently starlike functions. Altıntaş, Osman; Özkan, Öznur — 2009 Journal of Inequalities and Applications [electronic only]
Neighborhoods of certain analytic functions with negative coefficients. Altintas, Osman; Owa, Shigeyoshi — 1996 International Journal of Mathematics and Mathematical Sciences