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"Sum-Free Subsets of Right Cancellative Semigroups."
Tomasz Luczak, Tomasz Schoen (2001)
- Tomasz Luczak, Tomasz Schoen:
Sum-Free Subsets of Right Cancellative Semigroups. Eur. J. Comb. 22(7): 999-1002 (2001)
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