Williams, M. J. Y.; Angel, J. B. (January 1973), "Enhancing Testability of Large Scale Integrated Circuits via Test Points and Additional Logic", IEEE Transactions on Computers, C-22 (1): 46–60, doi:10.1109/T-C.1973.223600, S2CID5427856
Williams, M. J. Y.; Angel, J. B. (January 1973), "Enhancing Testability of Large Scale Integrated Circuits via Test Points and Additional Logic", IEEE Transactions on Computers, C-22 (1): 46–60, doi:10.1109/T-C.1973.223600, S2CID5427856