Univalent Functions with Univalent Derivatives III S. ShahS. Trimble Indiana University Mathematics Journal 1970 text pdf 10.1512/iumj.1970.19.19042 10.1512/iumj.1970.19.19042 en Indiana Univ. Math. J. 19 (1970) 451 - 460 state-of-the-art mathematics http://iumj.org/access/