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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1, 2-3, 4); 2006; 2007; 2008; 2009
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 1(1-2, 4), 2007: 2(4), 2008: 3(2-3), 2009: 4(1-3), 2010: 5(1-3), 2011: 6(1-2, 4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 7(4), 2013: 8(1), 2014: 9(1-4), 2015: 10(1-4), 2016: 11(1-4), 2017: 12(1-4), 2018: 13(1-4), 2019: 14(1-4), 2020: 15(1-4), 2021: 16(1-4), 2022: 17(1-4), 2023: 18(1-4), 2024: 19(1-3), 2025: 20(1-4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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8 to 10
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 15
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 20
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Library of Congress
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Preserved
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2025-04-07
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11 (3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 18 (1 to 4); 19 (1 to 3)
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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 : 19 (1 to 4)
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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 : 19 (1 to 4)
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