Symbolic and Quantitative Approaches to Reasoning with Uncertainty 15th European Conference, ECSQARU 2019, Belgrade, Serbia, September 18-20, 2019, Proceedings - Kern-Isberner, Gabriele; Kern-Isberner, Gabriele; Ognjanović, Zoran; Ognjanović, Zoran (Springer International Publishing : Imprint: Springer, 2019)