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CLOCKSS Archive
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Preserved
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2026-04-27
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1 to 5
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Portico
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Preserved
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2026-04-23
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Preserved : 2008: 1(1-4), 2009: 2(1-4), 2010: 3(1-4), 2011: 4(1-4), 2012: 5(1-4)
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LOCKSS Archive
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In Progress
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2026-04-27
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 5 (1 to 3)
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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 : 5 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (2-4); 2 (1-4); 3 (1-4); 4 (1-2, 3, 4); 5 (1, 2, 3-4)
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