1. Ahlfors LV (1974) Sufficient conditions for quasiconformal extension, Discontinuous groups and Riemann surfaces (Proc. Conf., Univ. Maryland, College Park, Md., 1973), Ann Math Stud 79:23–29. Princeton Univ Press, Princeton
2. Breaz D, Owa S, Breaz N (2008) A new integral univalent operator. Acta Univ Apulensis Math Inf 16:11–16
3. Dimkov G (1991) On products of starlike functions I. Ann Polon Math 55:75–79
4. Dimkov G, Dziok J (1998) Generalized problem of starlikeness for products of p-valent starlike functions. Serdica Math J 24:339–344
5. Ebadian A, Kargar R (2018) Univalence of integral operators on neighborhoods of analytic functions. Iran J Sci Technol Trans Sci 42:911–915