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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); 06 (1 to 4); 07 (1 to 4); 08 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 8); 23 (1 to 8); 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 12); 34 (1 to 12); 35 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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1 to 23
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Portico
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Preserved
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2026-04-23
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Preserved : 1992: 1(1-4), 1993: 2(1-4), 1994: 3(1-4), 1995: 4(1-4), 1996: 5(1-4), 1997: 6(2)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 35
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Portico
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Preserved
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2026-04-23
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Preserved : 1999: 8(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 2002: 11(1, 3)
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Portico
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Preserved
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2026-04-23
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Preserved : 2005: 14(2), 2006: 15(2), 2007: 16(1-6), 2008: 17(1-6), 2009: 18(1-6), 2010: 19(1-6), 2011: 20(1-6), 2012: 21(1-4, 6), 2013: 22(1-7), 2014: 23(1-7), 2015: 24(4-12), 2016: 25(1-12), 2017: 26(1-12), 2018: 27(1-12), 2018/2019: 28(1-12), 2019/2020: 29(1-12), 2021: 30(1-12), 2022: 31(1-12), 2023: 32(1-12), 2024: 33(1-10, 12), 2025: 34(1, 3-12), 2026: 35(1-3)
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LOCKSS Archive
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In Progress
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2026-04-13
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21, 28
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LOCKSS Archive
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Preserved
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2026-04-13
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22 to 27
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Library of Congress
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Preserved
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2025-04-07
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25 (11); 26 (8); 27 (2 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 9)
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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 6); 3 (1 to 9, 11, 12); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 8); 23 (1 to 8); 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); 32 (1 to 9, 11, 12); 33 (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 6); 3 (1 to 9, 11, 12); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 8); 23 (1 to 8); 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); 32 (1 to 9, 11, 12); 33 (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 : 06 (2-4); 6 (1-4); 07 (1-4); 7 (1-4); 8 (1-4); 08 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-6); 16 (1, 4-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-8); 23 (1-8); 24 (1-12); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12)
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