Jens Wiegert Matthias Bertram Jörg Wulff Dirk Schäfer Jürgen Weese Thomas Netsch Hermann Schomberg Georg Rose 3D ROI imaging for cone-beam computed tomography. 7-12 2004 conf/cars/2004 CARS db/conf/cars/cars2004.html#WiegertBWSWNSR04