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"Designs with the Symmetric Difference Property on 64 Points and Their Groups."
Christopher Parker, Edward Spence, Vladimir D. Tonchev (1994)
- Christopher Parker, Edward Spence, Vladimir D. Tonchev:
Designs with the Symmetric Difference Property on 64 Points and Their Groups. J. Comb. Theory, Ser. A 67(1): 23-43 (1994)
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