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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 12 (1 to 3 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 3 to 6); 17 (, 1 to 3 to 6); 18 (, 1 to 3 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1_suppl, 2 to 6); 25 (, 1_suppl, 2 to 6); 26 (, 1 to 6); 27 (, 1_suppl, 2 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 3); 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 12
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 19(2-6), 2012: 20(1-6), 2013: 21(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 1(1-6), 1994: 2(1-6), 1995: 3(1-6), 1996: 4(1-6), 1997: 5(1-6), 1998: 6(1-6), 1999: 7(1-6), 2000: 8(1-6), 2001: 9(1-6), 2002: 10(1-6), 2003: 11(1-6), 2004: 12(1, 1, S, 2, 2, S, 3-6), 2005: 13(1-6), 2006: 14(1-6), 2007: 15(1-6), 2008: 16(1, 1, S, 2, 2, S, 3-6), 2009: 17(1, 1, S, 2, 2, S, 3, 3, S, 4-6), 2010: 18(1, 1, S, 2, 2, S, 3-6), 2011: 19(1-6), 2012: 20(1-6), 2013: 21(1-6), 2014: 22(1-6), 2015: 23(1-6), 2016: 24(1, 1, S, 2-6), 2017: 25(1, 1, S, 2, 2, S, 3, 3, S, 4-6), 2018: 26(1-6), 2019: 27(1, 1, S, 2-6), 2020: 28(1-6), 2021: 29(4-6), 2022: 30(1-6), 2023: 31(1-6), 2024: 32(1-6), 2025: 33(1-6), 2026: 34(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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12 to 32
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CLOCKSS Archive
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In Progress
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2026-02-09
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12 to 20, 24 to 33
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CLOCKSS Archive
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Preserved
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2026-02-09
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21 to 23
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LOCKSS Archive
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In Progress
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2026-02-09
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33
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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 6); 2 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 3 to 6); 17 (1 to 6); 18 (1_suppl, 2 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (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 : 6 (6); 12 (1_suppl, 2_suppl); 16 (1_suppl, 2_suppl); 17 (1_suppl, 2_suppl, 3); 18 (1_suppl, 2); 19; 20 (6); 21 (1-6); 22 (1-6); 23 (1-3, 6); 24 (1-6); 25 (1-6); 26 (1-6); 27 (1-5)
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British Library
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Preserved
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2019-09-18
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Preserved : 22 (1 to 6), 23 (1 to 6), 24 (1 to 6), 25 (1 to 6), 26 (1 to 5)
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