Richard A. Brualdi is an Emeritus Professor at the University of Wisconsin in Madison, WI, USA.
Pauline van den Driessche is an Emeritus Professor at the University of Victoria, Canada.
Dragan Stevanovic is a Full Research Professor at the Serbian Academy of Sciences and Arts in Belgrade, Serbia.
Stephen Kirkland is a Professor at the University of Manitoba in Winnipeg, Canada.
Ángeles Carmona is an Associate Professor at the Universitat Politècnica de Catalunya in Barcelona, Spain.