preprint-author: 
A. Poirier
preprint-title: 
On the Realization of Fixed Point Portraits (an addendum to Goldberg & Milnor: Fixed Point Portraits)
preprint-abstract: 

We establish that every formal critical portrait (as defined by Goldberg and Milnor), can be realized by a postcritically finite polynomial.

preprint-year: 
1991