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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 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 3); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 12); 20 (1 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 33
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 4(1-4), 1998: 5(1-4), 1999: 6(1-4), 2000: 7(1-4), 2001: 8(1-3), 2002: 9(1-4), 2003: 10(1-4), 2004/2005: 11(1-4), 2005: 12(1-6), 2006: 13(1-6), 2007: 14(1-6), 2008: 15(1-6), 2009: 16(1-6), 2010: 17(1-6), 2011: 18(1-6), 2012: 19(1-10, 12), 2013: 20(1-7, 9, 11-12), 2014: 21(1-12), 2015: 22(1, 3-12), 2016: 23(1-12), 2017: 24(1-12), 2018: 25(1-12), 2019: 26(1-12), 2019/2020: 27(1-12), 2021: 28(1-12), 2022: 29(1-12), 2023: 30(1-12), 2024: 31(1-12), 2025: 32(1-12), 2026: 33(1-4)
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LOCKSS Archive
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In Progress
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2026-04-13
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19, 26
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LOCKSS Archive
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Preserved
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2026-04-13
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20 to 25
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Library of Congress
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Preserved
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2025-04-07
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25 (2 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 11); 32 (1)
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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 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 3); 9 (1 to 4); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12)
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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 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 3); 9 (1 to 4); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12)
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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 : 21 (12)
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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 : 21 (12)
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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 : 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-3); 9 (1-4); 10 (1-4); 11 (2-4); 12 (1-6); 13 (1-5); 14 (1, 2, 4, 5); 15 (1-6); 16 (1-6); 17 (1-6); 18 (1-6); 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-8); 33 (6)
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