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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 5
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 5
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Portico
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Preserved
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2026-04-16
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Preserved : 2006: 1(1), 2007: 2(1), 2008: 3(1), 2009: 4(1)
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Portico
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Preserved
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2026-04-16
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Preserved : 2006: 1(1), 2008: 2(1), 2008: 3(1), 2010: 4(1), 2011: 5(1), 2012: 6(1)
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ZBW - Leibniz Information Centre for Economics
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Preserved
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2026-03-10
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Preserved : 1:1;2:1;2:1;3:1;4:1;4:1;5:1;6:1
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 2; 3; 4; 5
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 1; 2; 3; 4; 5; 6
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