Sotirios Matakias Yiorgos Tsiatouhas Themistoklis Haniotakis Angela Arapoyanni A Current Mode, Parallel, Two-Rail Code Checker. 1032-1045 2008 57 IEEE Trans. Computers 8 http://dx.doi.org/10.1109/TC.2008.59 db/journals/tc/tc57.html#MatakiasTHA08