Philipp V. Panitz Markus Olbrich Erich Barke Markus Bühler Jürgen Koehl Considering possible opens in non-tree topology wire delay calculation. 17-22 2008 ACM Great Lakes Symposium on VLSI http://doi.acm.org/10.1145/1366110.1366118 conf/glvlsi/2008 db/conf/glvlsi/glvlsi2008.html#PanitzOBBK08