Neighborhoods of a class of analytic functions with negative coefficients. - Osman Altintas; Öznur Özkan; H. M. Srivastava 001 (Appl. Math. Lett., 2000)

Applications of differential subordination. - Öznur Özkan; Osman Altintas (Appl. Math. Lett., 2006)

Some subordination results on the classes starlike and convex functions of complex order. - Öznur Özkan (Appl. Math. Comput., 2007)