%0 Journal Article %K anonymity %K argumentative negotiation %K informers %K intelligence agencies %K Multi-agent system %K security %B Information & Security: An International Journal %D 2002 %G eng %N 2 %P 194-206 %R http://dx.doi.org/10.11610/isij.0811 %T Argumentative Negotiations with Anonymous Informer Agents %V 8