The sub-semi-groups excluding zero of a near-ring

DOI10.1007/BF01300938zbMath0277.16024OpenAlexW1977533725MaRDI QIDQ1393464

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Publication date: 1973

Published in: (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/177657

Mathematics Subject Classification ID

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