Uwe Stilla Franz Rottensteiner Helmut Mayer 0001 Boris Jutzi Matthias Butenuth Photogrammetric Image Analysis - ISPRS Conference, PIA 2011, Munich, Germany, October 5-7, 2011. Proceedings 6952 2011 Springer Lecture Notes in Computer Science https://doi.org/10.1007/978-3-642-24393-6 978-3-642-24392-9 PIA db/conf/pia/pia2011.html