1. Aharonov, D., Bazilevič theorem for areally p-valent functions, J. London Math. Soc. (2), 27 (1983).
2. Bazilevič, I. E., On a univalence criterion for regular functions and the dispersion of their coefficient, Mat. Sb. 74 (1967), 135–146.
3. Hayman, W. K., Multivalent functions, 1st edition, Cambridge University Press, Cambridge, 1958.
4. Milin, I. M., Hayman's regularity theorem for the coefficients of univalent functions, Dokl. Adad. Nauk SSR, 192 (1970), 738–741; Soviet Math. Dokl. 11 (1970), 724–728.