Graph-Based Representations in Pattern Recognition 9th IAPR-TC-15 International Workshop, GbRPR 2013, Vienna, Austria, May 15-17, 2013. Proceedings - Kropatsch, Walter G.; Artner, Nicole M.; Haxhimusa, Yll.; Jiang, Xiaoyi. (Springer Berlin Heidelberg : Imprint: Springer, 2013)