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Generator matrices of new codes obtained in the manuscript
"Composite Constructions of Self-Dual Codes from
Group Rings and New Extremal Self-Dual Binary
Codes of Length 68."
by S. Dougherty, J. Gildea, A. Korban and A. Kaya.
Binary matrices of new extremal binary self-dual codes of length 68 in TABLE 14
Binary matrices of new extremal binary self-dual codes of length 68 in TABLE 15
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