Strathprints Institutional Repository Howey, R. and Long, D. and Fox, M. (2004) Validating plans with exogenous events. In: Proceedings of the 23rd Workshop of the UK Planning and Scheduling Special Interest Group (PlanSIG 2004). UNSPECIFIED, pp. 78-87. , This version is available at http://strathprints.strath.ac.uk/2654/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (http://strathprints.strath.ac.uk/ ) and the content of this paper for research or study, educational, or not-for-profit purposes without prior permission or charge. Any correspondence concerning this service should be sent to Strathprints administrator: strathprints@strath.ac.uk