Reiji Suda Ryotaro Kamikawai Yasuo Wada Willy Hioe Mutsumi Hosoya Eiichi Goto 48-56 1994 13 IEEE Trans. on CAD of Integrated Circuits and Systems 1 http://doi.ieeecomputersociety.org/10.1109/43.273750 db/journals/tcad/tcad13.html#SudaKWHHG94