Yutaka Sekiyama Yasuyuki Fujihara Terumine Hayashi Mitsuho Seki Jiro Kusuhara Kazuhiko Iijima Masahiro Takakura Koji Fukatani Timing-Oriented Routers for PCB Layout Design of High-Performance Computers. 332-335 1991 ICCAD db/conf/iccad/iccad1991.html#SekiyamaFHSKITF91