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Internet Archive
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Preserved
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2025-08-08
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14 to 23
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 53 (1 to 12); 54 (, 1 to 12); 55 (, 1 to 12); 56 (, 1 to 12); 57 (, 1 to 14); 58 (, 1 to 14); 59 (, 1 to 14); 60 (, 1 to 14); 61 (, 1 to 14); 62 (, 1 to 14); 63 (, 1 to 14); 64 (, 1 to 13); 65 (, 1 to 13); 66 (, 1 to 12); 67 (, 1 to 12); 68 (, 1 to 8, 10 to 12); 69 (, 1 to 12); 70 (, 1 to 12); 71 (, 3 to 12); 72 (, 1 to 6); 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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53 to 72
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 53(1-12), 2007: 54(1-12), 2008: 55(1-12), 2009: 56(1-12), 2010: 57(1-14), 2011: 58(1-14), 2012: 59(1-11, 13-14), 2013: 60(1-11, 13-14), 2014: 61(1-10, 12-13), 2015: 62(2-14), 2016: 63(1-14), 2017: 64(1-9, 11-13), 2018: 65(1-13), 2019: 66(1-12), 2020: 67(1-12), 2021: 68(1-12), 2022: 69(1-2, 4-12), 2023: 70(1-12), 2024: 71(1-10, 12), 2025: 72(3-12)
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LOCKSS Archive
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In Progress
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2026-02-09
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59, 66
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LOCKSS Archive
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Preserved
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2026-02-09
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60 to 65
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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 : 6 (1 to 9, 11 to 14); 7 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 5, 9, 11 to 14); 58 (1 to 9, 11 to 14); 59 (1 to 9, 11 to 14); 61 (1 to 9, 11 to 14); 62 (1 to 9, 11 to 14); 63 (1 to 9, 11 to 14); 64 (1 to 9, 11 to 13); 65 (1 to 9, 11 to 13); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 6 (1 to 9, 11 to 14); 7 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 5, 9, 11 to 14); 58 (1 to 9, 11 to 14); 59 (1 to 9, 11 to 14); 61 (1 to 9, 11 to 14); 62 (1 to 9, 11 to 14); 63 (1 to 9, 11 to 14); 64 (1 to 9, 11 to 13); 65 (1 to 9, 11 to 13); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 71 (1 to 9, 11, 12)
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Library of Congress
|
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Preserved
|
2025-04-07
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64 (12, 13); 65 (1 to 13); 66 (1 to 12); 67 (1 to 12); 68 (1 to 8, 10 to 12); 69 (1 to 12); 70 (1 to 12); 71 (1 to 9)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 57 (1, 4 to 9, 11 to 14); 58 (1 to 6)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 57 (1, 4 to 9, 11 to 14); 58 (1 to 6)
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|
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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 : 53 (3-9, 11, 12); 54 (1, 2, 5-12); 55 (1-12); 56 (1-12); 57 (1-14); 58 (1-14); 59 (1-14); 60 (1-14); 61 (1-12, 14); 62 (1-14); 63 (1-14); 64 (1-13); 65 (1-13); 66 (1-11)
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