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