C. Selvaraj, O. S. Babu & G. Murugusundaramoorthy. (1970). Coefficient Estimates for Certain Subclasses of Bi-Univalent Ma-Minda Mocanu-Convex Functions. Analysis in Theory and Applications. 30 (2). 141-150. doi:10.4208/ata.2014.v30.n2.1