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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 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); 10 (1 to 4); 12 (1 to 6); 13 (1/2, 3 to 6); 14 (1 to 3, 4/5, 6); 15 (1 to 6); 16 (1 to 6); 17 (1-2, 3 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1-2, 3 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 30 (1 to 8); 31 (1 to 10); 32 (1 to 12); 33 (7, 8-9, 10, 11-12); 34 (1, 2, 3-4, 5 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (2 to 12); 39 (1 to 12); 40 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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1 to 5
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CLOCKSS Archive
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Preserved
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2026-04-13
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13 to 40
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Portico
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Preserved
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2026-04-16
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Preserved : 1999: 13(1-6), 2000: 14(1-6), 2001: 15(1-6), 2002: 16(1-6), 2003: 17(1-6), 2004: 18(1-6), 2005: 19(1-6), 2006: 20(1-6), 2006/2007: 21(1-6), 2008: 22(1-6), 2009: 23(1-8), 2010: 24(1-8), 2011: 25(1-8), 2012: 26(1-6, 8), 2013: 27(1-6), 2014: 28(1-7), 2015: 29(1, 3-8), 2016: 30(1-8), 2017: 31(1-10), 2018: 32(1-12), 2019: 33(1-12), 2019/2020: 34(1-12), 2021: 35(1-12), 2022: 36(1-12), 2023: 37(1-12), 2024: 38(1-11), 2025: 39(1-12), 2026: 40(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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26, 33
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LOCKSS Archive
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Preserved
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2026-04-13
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27 to 32
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Library of Congress
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Preserved
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2025-04-07
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32 (1 to 12); 33 (1 to 4-6, 7, 8-9, 10, 11-12); 34 (1 to 3-4, 5 to 12); 35 (1 to 9, 11, 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 10)
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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 : 2 (1, 3 to 6); 3 (1 to 8); 11 (1 to 6); 12 (1 to 6); 13 (1, 3 to 6); 14 (1 to 4, 6); 15 (1 to 6); 16 (1 to 6); 17 (1, 3 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (Suppl 1, 1 to 6); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 9); 32 (1 to 9, 11, 12); 33 (1 to 3, 4-6, 7, 8-9, 11-12); 34 (1, 2, 3-4, 5 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (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 : 2 (1, 3 to 6); 3 (1 to 8); 11 (1 to 6); 12 (1 to 6); 13 (1, 3 to 6); 14 (1 to 4, 6); 15 (1 to 6); 16 (1 to 6); 17 (1, 3 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (Suppl 1, 1 to 6); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 9); 32 (1 to 9, 11, 12); 33 (1 to 3, 4-6, 7, 8-9, 11-12); 34 (1, 2, 3-4, 5 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 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 : 13 (1-2, 3-6); 14 (1-3, 4-5, 6); 15 (1-6); 16 (1-6); 17 (1-2, 3-6); 18 (1-6); 19 (1-6); 20 (1-2, 3-6); 21 (2, 3, 5, 6); 22 (1, 2, 4-6); 23 (1-8); 24 (1-8); 25 (1-8); 26 (1-8); 27 (1-8); 28 (1-8); 29 (1-8); 30 (1-8); 31 (1-10); 32 (1-12); 33 (1-3, 4-6, 7, 8-9, 10); 76 (5)
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