Wu-Chuan Yang Dah-Jyh Guan Chi-Sung Laih 234-242 2007 56 IEEE Trans. Computers 2 https://doi.org/10.1109/TC.2007.29 https://doi.ieeecomputersociety.org/10.1109/TC.2007.29 db/journals/tc/tc56.html#YangGL07