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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); 2; 5; 6; 12 (2); 13 (1, 2); 14 (1, 2); 15; 16 (1, 2); 17 (1, 2); 18 (1, 2); 19; 20 (1); 21 (2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2)
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LOCKSS Archive
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Preserved
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2026-05-18
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10 to 27
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CLOCKSS Archive
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Preserved
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2026-05-18
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10 to 28
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LOCKSS Archive
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In Progress
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2026-05-18
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28
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Portico
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Preserved
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2026-05-14
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Preserved : 1988: 1(1), 1989: 2(1)
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Portico
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Preserved
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2026-05-14
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Preserved : 1992: 5(1), 1993: 6(1)
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Portico
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Preserved
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2026-05-14
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Preserved : 2007: 10(1-2), 2008: 11(1-2), 2009: 12(1-2), 2010: 13(1-2), 2011: 14(1-2), 2012: 15(1-2), 2013: 16(1-2), 2014: 17(1-2), 2015: 18(1-2), 2016: 19(1-2), 2017: 20(1-2), 2018/2019: 21(1-2), 2019: 22(1-2), 2020: 23(1-2), 2020/2021: 24(1-2), 2022: 25(1-2), 2023: 26(1-2), 2024: 27(1-2), 2025: 28(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 : 1 (2); 2 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (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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20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2)
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