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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 5
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Portico
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Preserved
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2026-02-12
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Preserved : 2011/2012: 1(1-4), 2013: 2(1-4), 2014/2015: 3(1-4), 2016/2017: 4(1-4), 2017/2020: 5(1, S, 1-2)
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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 5
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 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 (1-2, 3, 4); 2 (1-2, 3-4); 3 (1); 4 (3, 4); 5 (s1, 1-2)
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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 (1-2, 3, 4); 2 (1-2, 3-4); 3 (1, 2, 3,4); 4 (1-2, 3, 4); 5 (1-2)
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