Toth, F.L. <https://pure.iiasa.ac.at/view/iiasa/3087.html>  (1995).  Policy exercises: The first 10 years.    In:  Simulations and Gaming across Disciplines and Cultures : ISAGA at a Watershed. Eds. Crookall, D. & Arai, K., pp. 257-264 London, UK: Sage.  ISBN 0-8037-7102-8