He became professor at Princeton University in 1996, and is Editor-in-Chief for the "Journal of Graph Theory".
He is Editor-in-Chief for the "Journal of Graph Theory". He became professor at Princeton University in 1996.
He became professor at Princeton University in 1996. He is Editor-in-Chief for the "Journal of Graph Theory".
He became professor at Princeton University in 1996. He is Editor-in-Chief for the "Journal of Graph Theory".