@INBOOK{PaarR09, chapter = {Ontological Modeling and Reasoning}, pages = {325-340}, title = {Computers in the Human Interaction Loop}, publisher = {Springer Verlag London}, year = {2009}, editor = {Alex Waibel and Rainer Stiefelhagen}, author = {Alexander Paar and J\"{u}rgen Reuter}, series = {Human-Computer Interaction Series}, month = {April}, doi = {10.1007/978-1-84882-054-8_27}, isbn = {978-1-84882-053-1}, issn = {1571-5035} }