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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, 2-3, 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1-2, 3, 4); 13 (1 to 4); 14 (1, 2-3, 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 5); 49 (1 to 5); 50 (1 to 5); 51 (1, 2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 51
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Portico
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Preserved
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2026-04-02
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Preserved : 2006: 11(1)
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Portico
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Preserved
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2026-04-02
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Preserved : 2007: 14(1-4), 2008: 16(1-2, 4), 2009: 17(1-4), 2009: 18(1-4), 2010: 19(1-4), 2010: 20(1-4), 2011: 21(1-4), 2011: 22(1-4), 2012: 23(1, 3-4), 2012: 24(1-2), 2013: 25(1-3), 2013: 26(1-3), 2014: 27(1-4), 2014: 28(1-4), 2015: 29(3-4), 2015: 30(1-4), 2016: 31(1-4), 2016: 32(1-4), 2017: 33(1-4), 2017: 34(1-4), 2018: 35(1-4), 2018: 36(1-4), 2019: 37(1-4), 2019: 38(1-4), 2019/2020: 39(1-4), 2020: 40(1-4), 2021: 41(1-4), 2021: 42(1-4), 2022: 43(1-5), 2022: 44(1-5), 2023: 45(1-5), 2023: 46(1-5), 2024: 47(1-5), 2024: 48(1-5), 2025: 49(1-5), 2025: 50(1-5), 2026: 51(1-3)
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LOCKSS Archive
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In Progress
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2026-04-06
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23, 24, 37
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LOCKSS Archive
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Preserved
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2026-04-06
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25 to 36
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Library of Congress
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Preserved
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2025-04-07
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35 (2 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 4)
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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 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1, 3, 4); 13 (1 to 4); 14 (1, 2, 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 5)
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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 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1, 3, 4); 13 (1 to 4); 14 (1, 2, 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 5)
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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 (1-4); 2 (1-4); 3 (1, 2, 4); 4 (1, 2); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-3); 9 (1, 2, 4); 10 (1, 2, 4); 11 (1-4); 12 (1-2); 13 (2-4); 14 (2-3, 4); 15 (1-4); 16 (1-4); 17 (1, 2, 4); 18 (1, 2, 4); 19 (1-4); 20 (1-4); 21 (1, 2, 4); 22 (2-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4)
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