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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 3); 2 (, 1 to 4); 3 (, 1-2, 3, 4); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1-2, 3, 4); 8 (, 1-2, 3, 4); 9 (, 1-2, 3-4); 10 (, 1, 2, 3-4); 11 (, 1, 2-3, 4); 12 (, 1, 2-3, 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1-4); 16 (, 1, 2-3, 4); 17 (, 1-2, 3, 4); 18 (, 1, 2-4); 19 (, 1-3, 4); 20 (, 1-3, 4); 21 (, 1-2, 3-4); 22 (, 1 to 4); 23 (, 1-2, 3, 4); 24 (, 1-4); 25 (, 1-3, 4); 26 (, 1-3, 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1-3, 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1, 2-4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1, 2, 3-4); 40 (, 1 to 4, 5-6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 4, 5-6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 4); 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; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 1(1-3), 1994: 2(1-4), 1995: 3(1-4), 1995: 4(1), 1996: 5(1), 1996: 6(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 52
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Portico
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Preserved
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2026-02-12
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Preserved : 1998: 8(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 21(3-4), 2005: 22(1), 2006: 24(1-4), 2006: 25(4), 2007: 27(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 29(3-4), 2009: 30(1-4), 2009: 31(1-4), 2010: 32(1-4), 2010: 33(1-4), 2011: 34(1-4), 2011: 35(1-4), 2012: 36(1, 3-4), 2012: 37(1-2), 2013: 38(1-4), 2013: 39(1-2), 2014: 40(1-4), 2015: 41(2-6), 2016: 42(1-6), 2017: 43(1-6), 2018: 44(1-6), 2019: 45(1-6), 2020: 46(1-6), 2021: 47(1-6), 2022: 48(1-6), 2023: 49(1-6), 2024: 50(1-6), 2025: 51(1-6), 2026: 52(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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36, 37, 45
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LOCKSS Archive
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Preserved
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2026-02-09
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38 to 44
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Library of Congress
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Preserved
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2025-04-07
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44 (2 to 6); 45 (1 to 5-6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 50 (1 to 6)
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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 3); 2 (1, 4); 3 (1 to 4); 4 (1 to 5); 5 (1 to 6); 7 (1, 3, 4); 8 (1, 3, 4); 9 (1, 3); 11 (1, 2, 4); 12 (1, 2, 4); 13 (1 to 4); 14 (1 to 4); 15 (1); 16 (2, 4); 17 (1, 3, 4); 18 (1, 2); 19 (1, 4); 21 (1, 3); 22 (1 to 4); 23 (1, 3, 4); 24 (1); 25 (4); 26 (1, 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1, 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1, 2); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 3); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 4, 5-6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (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 : 1 (1 to 3); 2 (1, 4); 3 (1 to 4); 4 (1 to 5); 5 (1 to 6); 7 (1, 3, 4); 8 (1, 3, 4); 9 (1, 3); 11 (1, 2, 4); 12 (1, 2, 4); 13 (1 to 4); 14 (1 to 4); 15 (1); 16 (2, 4); 17 (1, 3, 4); 18 (1, 2); 19 (1, 4); 21 (1, 3); 22 (1 to 4); 23 (1, 3, 4); 24 (1); 25 (4); 26 (1, 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1, 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1, 2); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 3); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 4, 5-6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (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 : 7 (1, 3, 4); 8 (1, 3, 4); 9 (1, 3); 10 (1-3); 11 (1, 2, 4); 12 (1, 2, 4); 13 (2-4); 14 (1-4); 15 (1); 16 (2, 4); 17 (1, 3, 4); 18 (1, 2); 19 (1, 4); 20 (1, 4); 21 (1, 3); 22 (1, 3, 4); 23 (1-2, 3, 4); 24 (1-4); 25; 26; 27 (2-4); 28 (1-3); 29 (1-4); 30 (1-4); 31 (1-3); 32 (2-4); 33 (2-4); 34 (1-4); 35 (1, 2-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1, 2, 3-4); 40 (1-4, 5-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-6); 45 (1-4)
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