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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 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 5); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 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 6); 33 (, 1, 2, 5, 6); 34 (, 1 to 5); 35 (, 1); 37 (, 3 to 6); 38 (, 1 to 6); 39 (, 1 to 4, 6); 40 (, 1); 1986; 1987; 1988; 1989; 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; 2019; 2020; 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 22
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Portico
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Preserved
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2026-02-12
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Preserved : 1998: 13(1-4), 1999: 14(1-4), 2000: 15(1-4), 2001: 16(2-4), 2002: 17(1-4), 2003: 18(1-4), 2004: 19(1-4), 2005: 20(1-4), 2006: 21(1-4), 2007: 22(1-4), 2008: 23(1-4), 2009: 24(1-4), 2009/2010: 25(1-4), 2010/2011: 26(1-4), 2011/2012: 27(1-4), 2012/2013: 28(1-4), 2012/2013/2014: 29(1-4), 2013/2014/2015: 30(1-4), 2014/2015: 31(1-4), 2017: 32(1-6), 2018: 33(1-6), 2019: 34(1-6), 2020: 35(1-6), 2021: 36(1-6), 2022: 37(1-6), 2023: 38(1-6), 2024: 39(1-6), 2025: 40(1-6), 2026: 41(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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20 to 39
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CLOCKSS Archive
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Preserved
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2026-02-09
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23 to 30, 32
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CLOCKSS Archive
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In Progress
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2026-02-09
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31, 33 to 40
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LOCKSS Archive
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In Progress
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2026-02-09
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40
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 35 (3 to 6); 36 (, 1 to 6); 37 (, 1, 2); 38 (, 1); 2019; 2020; 2021; 2022
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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 : 3 (suppl_1, 1 to 4); 4 (1 to 4); 21 (suppl_1, 1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (suppl_1, 1 to 4); 25 (1 to 4); 26 (suppl_2, 1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (suppl_1, 1 to 4); 31 (1 to 4); 32 (1 to 6); 33 (1 to 6); 34 (Supplement_1, 1 to 6); 35 (1 to 6); 36 (Supplement_1, 1 to 6); 37 (Supplement_1, 1 to 6); 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 : 3 (suppl_1, 1 to 4); 4 (1 to 6); 21 (suppl_1, 1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (suppl_1, 1 to 4); 25 (1 to 4); 26 (suppl_1, 1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (suppl_1, 1 to 4); 31 (1 to 4); 32 (1 to 6); 33 (1 to 6); 34 (Supplement_1, 1 to 6); 35 (1 to 6); 36 (Supplement_2, 1 to 6); 37 (Supplement_1, 1 to 6); 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 : 1 (3, 4); 2 (3); 3; 5 (4); 6 (3, 4); 7 (2, 4); 8 (3, 4); 9 (2-4); 10 (2-4)
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