Young Hee Geum Young Ik Kim A Study on Computation of Component Centers in the Degree-n Bifurcation Set. 223-232 2003 80 Int. J. Comput. Math. 2 http://taylorandfrancis.metapress.com/openurl.asp?genre=article&issn=0020-7160&volume=80&issue=2&spage=223 db/journals/ijcm/ijcm80.html#GeumK03