Francis Rousseaux Kevin Lhoste Towards a Collection-Based Knowledge Representation: Application to Geo-political Risks and Crisis Management. 81-87 2008 ICDS http://doi.ieeecomputersociety.org/10.1109/ICDS.2008.38 conf/icds/2008 db/conf/icds/icds2008.html#RousseauxL08