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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, 2); 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, 2-3, 4); 10 (1, 2, 3-4); 11 (1-2); 12 (3, 4); 13 (1-2, 3, 4); 14 (1, 2, 3-4); 15 (1-2, 3, 4); 16 (1-2, 3, 4); 17 (1, 2, 3-4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1-2, 3, 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 (3, 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 6); 39 (1 to 6); 40 (1 to 8); 41 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 10
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 41
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LOCKSS Archive
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In Progress
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2026-04-06
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27, 34
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LOCKSS Archive
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Preserved
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2026-04-06
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28 to 33
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Portico
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Preserved
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2026-04-02
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Preserved : 1987: 1(1-2), 1988: 2(1-4), 1989: 3(1-4), 1989/1990: 4(1-4), 1991: 5(1-4), 1992: 6(1-4), 1993: 7(1-4), 1994: 8(1-4), 1995: 9(1-4), 1996: 10(1-4), 1997: 11(1-2), 1998: 12(1-4), 1999: 13(1-4), 2000: 14(1-4), 2001: 15(1-4), 2002: 16(1-4), 2003: 17(1-4), 2004: 18(1-4), 2005: 19(1-4), 2006: 20(1-4), 2007: 21(1-4), 2007/2008: 22(1-4), 2009: 23(1-4), 2009: 24(1-4), 2010: 25(1-4), 2011: 26(1-4), 2012: 27(1-4), 2013: 28(1-2, 4), 2014: 29(1-4), 2015: 30(2-4), 2016: 31(1-4), 2017: 32(1-4), 2018: 33(1-4), 2019: 34(1-4), 2018/2019/2020: 35(1-4), 2021: 36(1-4), 2022: 37(1-4), 2023: 38(1-6), 2024: 39(1-5), 2025: 40(2-8), 2026: 41(1-2)
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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 to 4); 3 (1 to 4); 11 (1); 12 (3, 4); 13 (1, 3, 4); 14 (1 to 3); 15 (1, 3, 4); 16 (1, 3, 4); 17 (1 to 3); 18 (1 to 4); 19 (1 to 4); 21 (1, 3, 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 6); 39 (1 to 6)
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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 to 4); 3 (1 to 4); 11 (1); 12 (3, 4); 13 (1, 3, 4); 14 (1 to 3); 15 (1, 3, 4); 16 (1, 3, 4); 17 (1 to 3); 18 (1 to 4); 19 (1 to 4); 21 (1, 3, 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 6); 39 (1 to 6)
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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 : 16 (1-2, 3, 4); 17 (2, 3-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-2, 3, 4); 22 (1-4); 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); 63 (2)
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Library of Congress
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Preserved
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2025-04-07
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33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 6); 39 (1 to 5)
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