Classifying German Questions According to Ontology-Based Answer Types. - Adriana Davidescu; Andrea Heyl; Stefan Kazalski; Irene M. Cramer; Dietrich Klakow (GfKl, 2006)

DFKI2: An Information Extraction Based Approach to People Disambiguation. - Andrea Heyl; Günter Neumann (SemEval@ACL, 2007)