@COMMENT{Imported form SteinLib http://elib.zib.de/steinlib}
@TECHREPORT{ZR00,
   author      = "M. Zachariasen and A. Rohe",
   title       = "Rectilinear group Steiner trees and applications in {VLSI} design",
   institution = "Institute for Discrete Mathematics",
   year        = "2000",
   number      = "00906",
}