@inproceedings { SSW+12a, title = {Graph-based combinations of fragment descriptors for improved 3D Object Retrieval}, booktitle = {Proc. ACM Multimedia Systems Conference}, note = {Peer-reviewed short paper}, pages = {23--28}, year = {2012}, author = {Schreck, Tobias and Scherer, Maximilian and Walter, Michael and Bustos, Benjamin and Yoon, Sang and Kuijper, Arjan} }