@inproceedings{TUW-180396, author = {Retscher, G{\"u}nther}, title = {Multi-sensor Fusion Using a Kalman Filter and Knowledge-based Systems}, booktitle = {ION GNSS 2009 Conference}, year = {2009}, numpages = {8}, note = {talk: ION GNSS 2009 Conference, Savannah, Georgia, USA; 2009-09-22 -- 2009-09-25} }