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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 4); 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 6); 20 (, 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 8); 28 (, 1 to 8); 29 (, 1 to 8); 30 (, 1 to 6, 8 to 10); 31 (, 1 to 10); 32 (, 1 to 10); 33 (, 1 to 10); 34 (, 2 to 9); 35 (, 1 to 10); 36 (, 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
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Internet Archive
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Preserved
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2025-08-08
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1 to 20
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 8(3), 1994: 9(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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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 22(4), 2008: 23(1-6), 2008/2009: 24(1-6), 2009/2010: 25(1-6), 2010/2011: 26(1-6), 2011/2012: 27(1-8), 2012/2013: 28(1-8), 2012/2013/2014: 29(1-8), 2014/2015: 30(1-10), 2015/2016: 31(1-10), 2017: 32(1-10), 2018: 33(1-10), 2019: 34(1-10), 2020: 35(1-10), 2021: 36(1-10), 2022: 37(1-10), 2023: 38(1-10), 2024: 39(1-10), 2025: 40(1-10), 2026: 41(1)
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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
|
2026-02-09
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40
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Scholars Portal
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Preserved
|
2025-09-02
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Preserved : 36 (3 to 10); 37 (, 1 to 10); 38 (, 1 to 5, 7 to 9); 39 (, 1 to 7, 9); 40 (, 1, 2); 2020; 2021; 2022; 2023; 2024
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National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
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Preserved : 3 (suppl_1, 1 to 9); 4 (1 to 5, 7); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (suppl_1, 1 to 6); 26 (suppl_1, 1 to 6); 27 (suppl_1, 1 to 8); 28 (1 to 8); 29 (suppl_1, 1 to 8); 31 (suppl_1, 1 to 9); 32 (suppl_4, 1 to 9); 33 (suppl_1, 1 to 9); 34 (Supplement_1, 1 to 9); 35 (Supplement_1, 1 to 9); 36 (Supplement_1, 1 to 9); 37 (1 to 5, 7 to 9); 38 (Supplement_1, 1 to 9); 39 (Supplement_1, 1 to 7, 9)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 3 (suppl_1, 1 to 9); 4 (1 to 5, 7, 8); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (suppl_1, 1 to 6); 26 (suppl_1, 1 to 6); 27 (suppl_1, 1 to 8); 28 (1 to 8); 29 (suppl_1, 1 to 8); 31 (suppl_1, 1 to 9); 32 (suppl_4, 1 to 9); 33 (suppl_1, 1 to 9); 34 (Supplement_1, 1 to 9); 35 (Supplement_2, 1 to 9); 36 (Supplement_1, 1 to 9); 37 (1 to 5, 7 to 9); 38 (Supplement_1, 1 to 9); 39 (Supplement_1, 1 to 7, 9)
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National Digital Preservation Program, China
|
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Preserved
|
2025-12-04
|
|
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Preserved : 35
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 1 (2-4); 2 (2, 4); 3 (2, 4); 4 (3, 4); 5 (1-4); 6 (2-4); 7 (1-4); 8 (2-4); 9 (2-4); 10 (2-4)
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British Library
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Preserved
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2019-09-18
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|
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Preserved : 29 (1 to 3; 6 to 8), 30 (1 to 6; 8 to 10; S1 to S2), 31 (4 to 10; S2), 32 (1 to 2; 4 to 5; 9 to 10), 33 (1 to 2; 4 to 10; S2), 34 (4)
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