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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 34 (1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 7); 43 (, 1 to 7); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 3); 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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Internet Archive
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Preserved
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2025-08-08
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1 to 11
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 34(1-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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34 to 59
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 35(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 40(2-3)
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LOCKSS Archive
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In Progress
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2026-02-09
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46
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LOCKSS Archive
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Preserved
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2026-02-09
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47 to 53
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Portico
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Preserved
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2026-02-12
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Preserved : 2013: 47(1-6), 2014: 48(1-6), 2015: 49(2-6), 2016: 50(1-6), 2017: 51(1-6), 2018: 52(1-6), 2019/2020: 53(1-6), 2020: 54(1-6), 2021: 55(1-6), 2022: 56(1-6), 2023: 57(1, S 1, 2, S 2, 3, S 3, 4-6), 2024: 58(1, S 1, 2, S 2, 3-6), 2025: 59(1, S 1, 2, S 2, 3-6)
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Library of Congress
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Preserved
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2025-04-07
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52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1, S1, S2, 2, S3, 3 to 6); 58 (S1, 1 to 4, S4, 5)
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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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|
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Preserved : 4 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 7); 43 (1 to 7); 44 (1 to 6); 45 (1 to 6)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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|
|
Preserved : 4 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 7); 43 (1 to 7); 44 (1 to 6); 45 (1 to 6)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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|
|
Preserved : 4 (1 to 6); 5 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 7); 43 (1 to 7); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (Suppl 2, 1 to 6); 58 (Suppl 3, 1 to 6)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
|
|
|
Preserved : 4 (1 to 6); 5 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 7); 43 (1 to 7); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (Suppl 2, 1 to 6); 58 (Suppl 3, 1 to 6)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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|
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Preserved : 34 (6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-4, 6); 41 (1-6); 42 (1-7); 43 (1-7); 44 (1-6); 45 (1-6); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-5)
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