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"In search of 4-(12, 6, 4) designs: Part I."
D. R. Breach, Martin J. Sharry, Anne Penfold Street (1993)
- D. R. Breach, Martin J. Sharry, Anne Penfold Street:
In search of 4-(12, 6, 4) designs: Part I. Australas. J Comb. 7: 237-246 (1993)

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