Isabelle Guérin received the title of étoile from Rudolf Nureyev, director of the Paris Opera Ballet during what years?
Isabelle Guérin: Isabelle Guérin (born 1961) is a French ballet dancer. Isabelle Guérin:  In 1985, she received the title of étoile from Rudolf Nureyev. Rudolf Nureyev:  He was director of the Paris Opera Ballet from 1983 to 1989 and its chief choreographer until October 1992.
from 1983 to 1989