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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 01 (2 to 6); 02 (1 to 6); 03 (1 to 6); 04 (1 to 6); 05 (1 to 12); 06 (1 to 12); 07 (1 to 12); 08 (1 to 12); 09 (1 to 12); 10 (1 to 12); 11 (1 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12); 20 (1 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 12); 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 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1, 2, 4 to 12); 42 (1 to 12); 43 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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3 to 23
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LOCKSS Archive
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Preserved
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2026-03-30
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1 to 35
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CLOCKSS Archive
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Preserved
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2026-03-30
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1 to 43
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Portico
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Preserved
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2026-04-02
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Preserved : 1987: 4(2-3)
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Portico
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Preserved
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2026-04-02
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Preserved : 1988: 5(8), 1989: 6(6), 1990: 7(2, 9), 1991: 8(1, 8)
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Portico
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Preserved
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2026-04-02
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Preserved : 1992: 9(9), 1993: 10(6)
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Portico
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Preserved
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2026-04-02
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Preserved : 1994: 11(8, 12), 1995: 12(8), 1996: 13(1, 4, 6, 9, 12), 1997: 14(1-12), 1998: 15(1-12), 1999: 16(1-12), 2000: 17(1-12), 2001: 18(1-12), 2002: 19(1-12), 2003: 20(1-12), 2004: 21(1-12), 2005: 22(1-12), 2006: 23(1-12), 2007: 24(1-12), 2008: 25(1-12), 2009: 26(1-12), 2010: 27(1-12), 2011: 28(1-12), 2012: 29(1-9, 11), 2013: 30(1-10, 12), 2014: 31(1-12), 2015: 32(1, 3-12), 2016: 33(1-12), 2017: 34(1-12), 2018: 35(1-12), 2019: 36(1-12), 2020: 37(1-12), 2021: 38(1-12), 2022: 39(1-12), 2023: 40(1-10, 12), 2024: 41(1-10, 12), 2025: 42(1, 3-12), 2026: 43(1)
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LOCKSS Archive
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In Progress
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2026-03-30
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36
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Library of Congress
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Preserved
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2025-04-07
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33 (5); 34 (5, 7, 8, 11, 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (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 : 2 (1 to 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 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); 34 (1 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); 39 (1 to 9, 11, 12); 41 (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 to 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 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); 34 (1 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); 39 (1 to 9, 11, 12); 41 (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 : 14 (1-12); 15 (1-12); 16 (1-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (1-12); 21 (1, 2, 4-12); 22 (1-12); 23 (1-8, 10-12); 24 (1-4, 6-12); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 33 (1-12); 34 (1-12); 35 (1-12); 36 (1-11); 126 (9)
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