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From MaRDI portal
Publication:4175256
DOI10.1002/MALQ.19780241502zbMATH Open0394.03015OpenAlexW4233441591MaRDI QIDQ4175256
Publication date: 1978
Published in: Mathematical Logic Quarterly (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1002/malq.19780241502
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