Region of variability for certain classes of univalent functions   satisfying differential inequalities
  In this paper we determine the region of variability for certain subclasses of univalent functions satisfying differential inequalities. In the final section we graphically illustrate the region of variability for several sets of parameters. 
S. Ponnusamy (IIT Madras, India), A. Vasudevarao (IIT Madras, India)   and M. Vuorinen (University of Turku, Finland)