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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 2 (2 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1, 2, 3-4)
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Portico
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Preserved
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2026-05-14
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Preserved : 2006: 1(1-4), 2007: 2(1-4), 2008: 3(1-4), 2009: 4(1-4), 2010: 5(1-4), 2011: 6(1-4)
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CLOCKSS Archive
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Preserved
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2026-05-11
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1 to 6
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LOCKSS Archive
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Preserved
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2026-05-11
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1 to 6
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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 : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (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 : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (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 (1-5); 2 (2-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1, 2, 3-4)
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