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Internet Archive
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Preserved
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2025-08-08
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1 to 37
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 45 (1 to 5); 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 7); 54 (, 1 to 7); 55 (, 1 to 7); 56 (, 1 to 7); 57 (, 1 to 7); 58 (, 1 to 7); 59 (, 1 to 7); 60 (, 1 to 7); 61 (, 1 to 7); 62 (, 1 to 7); 63 (, 1 to 7); 64 (, 1 to 7); 65 (, 1 to 7); 66 (, 1 to 7); 67 (, 1 to 7); 68 (, 1 to 7); 69 (, 1 to 7); 70 (, 1, 2); 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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CLOCKSS Archive
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Preserved
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2026-02-09
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45 to 70
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 45(1-5), 2001: 46(1-6), 2002: 47(1-6), 2003: 48(1-6), 2004: 49(1-6), 2005: 50(1-6), 2006: 51(1-6), 2007: 52(1-6), 2008: 53(1-7), 2009: 54(1-7), 2010: 55(1-7), 2011: 56(1-7), 2012: 57(1-4, 6), 2013: 58(1-7), 2014: 59(1-7), 2015: 60(2-7), 2016: 61(1-7), 2017: 62(1-7), 2018: 63(1-7), 2019/2020: 64(1-7), 2020: 65(1-7), 2021: 66(1-7), 2022: 67(1-7), 2023: 68(1, S 1, 2-7), 2024: 69(1, S 1, 2-4, 6-7), 2025: 70(1-7)
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LOCKSS Archive
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In Progress
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2026-02-09
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57, 64
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LOCKSS Archive
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Preserved
|
2026-02-09
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58 to 63
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Library of Congress
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Preserved
|
2025-04-07
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|
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62 (7); 63 (1 to 7); 64 (1 to 7); 65 (1 to 7); 66 (1 to 7); 67 (1 to 7); 68 (1, S1, 2 to 7); 69 (1 to 4)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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|
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Preserved : 5 (1 to 6); 45 (1 to 5); 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 7); 54 (1 to 7); 55 (1 to 7); 56 (1 to 7)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 5 (1 to 6); 45 (1 to 5); 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 7); 54 (1 to 7); 55 (1 to 7); 56 (1 to 7)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 5 (Suppl 1, 1 to 6); 6 (1 to 7); 45 (1 to 5); 46 (1 to 6); 47 (Suppl 1, 1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (Suppl 1, 1 to 6); 52 (1 to 6); 53 (1 to 7); 54 (1 to 7); 55 (1 to 7); 56 (1 to 7); 57 (1 to 7); 58 (1 to 7); 59 (1 to 7); 61 (1 to 7); 62 (1 to 7); 63 (1 to 7); 64 (1 to 7); 65 (1 to 7); 66 (1 to 7); 67 (1 to 7); 68 (1 to 5); 69 (1 to 7)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 5 (Suppl 1, 1 to 6); 6 (1 to 7); 45 (1 to 5); 46 (1 to 6); 47 (Suppl 1, 1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (Suppl 1, 1 to 6); 52 (1 to 6); 53 (1 to 7); 54 (1 to 7); 55 (1 to 7); 56 (1 to 7); 57 (1 to 7); 58 (1 to 7); 59 (1 to 7); 61 (1 to 7); 62 (1 to 7); 63 (1 to 7); 64 (1 to 7); 65 (1 to 7); 66 (1 to 7); 67 (1 to 7); 68 (1 to 5); 69 (1 to 7)
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|
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National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 45 (2-5); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1, 3-6); 53 (1-7); 54 (1-7); 55 (1-7); 56 (1-7); 57 (1-7); 58 (1-7); 59 (1-7); 60 (1-7); 61 (1-7); 62 (1-7); 63 (1-7); 64 (1-5)
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