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Internet Archive
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Preserved
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2026-07-13
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1 to 14
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Scholars Portal
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Preserved
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2026-06-02
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Preserved : 3 (1-2, 3-4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1-2, 3, 4); 8 (1-2, 3-4); 9 (1-2, 3-4); 10 (1-2, 3-4); 11 (1-2, 3-4); 12 (1 to 4); 13 (1, 2, 3-4); 14 (1 to 4); 15 (1, 2, 3-4); 16 (1 to 4); 17 (1-2, 3, 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 6); 26 (1 to 6); 27 (2 to 4); 28 (1 to 6); 29 (1 to 6); 30 (1, 2, 5, 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 3, 6); 34 (1, 3 to 6); 35 (1 to 5); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 40 (1 to 8); 41 (1 to 8); 42 (1, 2, 4 to 8); 43 (1 to 8); 44 (1 to 4)
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Portico
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Preserved
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2026-07-09
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Preserved : 1997: 15(1-4), 1998: 16(1-4), 1999: 17(1-4), 2000: 18(1-4), 2001: 19(1-4), 2002: 20(1-4), 2003: 21(1-4), 2004: 22(1-4), 2005: 23(1-4), 2006: 24(1-4), 2007: 25(1-6), 2008: 26(1-6), 2009: 27(1-6), 2010: 28(1-6), 2011: 29(1-6), 2012: 30(1-6), 2013: 31(1-6), 2014: 32(1-6), 2015: 33(1-6), 2016: 34(1-6), 2017: 35(1-6), 2018: 36(1-8), 2019: 37(1-8), 2020: 38(1-8), 2021: 39(1-8), 2022: 40(1-8), 2023: 41(1-8), 2024: 42(1-8), 2025: 43(1-8), 2026: 44(1-5)
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CLOCKSS Archive
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Preserved
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2026-07-06
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1 to 43
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LOCKSS Archive
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Preserved
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2026-07-06
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1 to 43
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CLOCKSS Archive
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Preserved
|
2026-07-06
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26 to 35
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LOCKSS Archive
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In Progress
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2026-07-06
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44
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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 (2 to 4); 3 (1 to 6); 4 (1 to 8); 15 (1, 2, 3-4); 16 (1 to 4); 17 (1-2, 3, 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 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1, 2, 4)
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Library of Congress
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Preserved
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2025-04-07
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32 (4); 33 (3); 35 (2 to 6); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 40 (1 to 8); 41 (1 to 8); 42 (1 to 6)
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