Shedletsky, John J. (1977). "Comment on the Sequential and Indeterminate Behavior of an End-Around-Carry Adder". IEEE Transactions on Computers. 26 (3): 271–272. doi:10.1109/TC.1977.1674817. S2CID14661474.
US 4484301, "Array multiplier operating in one's complement format", issued 1981-03-10
US 6760440, "One's complement cryptographic combiner", issued 1999-12-11
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Shedletsky, John J. (1977). "Comment on the Sequential and Indeterminate Behavior of an End-Around-Carry Adder". IEEE Transactions on Computers. 26 (3): 271–272. doi:10.1109/TC.1977.1674817. S2CID14661474.