On a generalization of Borel sets.
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Publication:1465423
zbMath47.0181.03MaRDI QIDQ1465423
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Publication date: 1919
Published in: (Search for Journal in Brave)
zbMath47.0181.03MaRDI QIDQ1465423
Could not fetch data.
Publication date: 1919
Published in: (Search for Journal in Brave)