Thomas Jambor Daniel Zaum Markus Olbrich Erich Barke A Trapezoidal Approach to Corner Stitching Data Structures for Arbitrary Routing Angles. 54-58 2008 DDECS http://dx.doi.org/10.1109/DDECS.2008.4538756 conf/ddecs/2008 db/conf/ddecs/ddecs2008.html#JamborZOB08