Adam Zachary Wyner Trevor J. M. Bench-Capon Towards an Extensible Argumentation System. 283-294 2007 conf/ecsqaru/2007 ECSQARU http://dx.doi.org/10.1007/978-3-540-75256-1_27 db/conf/ecsqaru/ecsqaru2007.html#WynerB07