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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 6); 2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 8); 7 (1 to 8); 8 (1, 2)
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CLOCKSS Archive
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Preserved
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2026-04-27
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1 to 8
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Portico
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Preserved
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2026-04-23
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Preserved : 2011: 1(1-6), 2012: 2(1-4, 6), 2013: 3(1-6), 2014: 4(1-4), 2015: 5(1-6), 2016: 6(1-8), 2017: 7(1-8), 2018: 8(1-2)
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Library of Congress
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Preserved
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2025-04-07
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8 (1, 2)
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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 : 7 (1 to 8); 8 (1, 2)
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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 : 7 (1 to 8); 8 (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 (1-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-8); 7 (1-8); 8 (1, 2)
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