Mansoor Alicherry Randeep Bhatia Yung-Chun (Justin) Wan Designing Networks with Existing Traffic to Support Fast Restoration. 1-12 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3122&spage=1 2004 conf/approx/2004 APPROX-RANDOM db/conf/approx/approx2004.html#AlicherryBW04