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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 5); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (3, 4); 63 (1, 2, 4); 64 (1 to 4); 65 (1 to 4); 67 (2 to 4); 68 (1, 2, 4); 70 (1, 4); 71 (1)
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Internet Archive
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Preserved
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2025-08-08
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15 to 60
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Portico
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Preserved
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2026-04-02
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Preserved : 1961: 6(4)
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Portico
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Preserved
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2026-04-02
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Preserved : 1998: 43(4)
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LOCKSS Archive
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Preserved
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2026-04-06
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53 to 69
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CLOCKSS Archive
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In Progress
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2026-04-06
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53, 64 to 70
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CLOCKSS Archive
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Preserved
|
2026-04-06
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54 to 63
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Portico
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Preserved
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2026-04-02
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Preserved : 2012: 57(1-4), 2012/2013: 58(1-4), 2014: 59(1-4), 2014/2015: 60(1-4), 2015/2016: 61(1-4), 2016/2017: 62(1-4), 2018: 63(1-4), 2019: 64(1-4), 2020: 65(1-4), 2021: 66(1-4), 2022: 67(1-4), 2023: 68(1-4), 2024: 69(1-4), 2025: 70(1-4), 2026: 71(1-2)
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LOCKSS Archive
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In Progress
|
2026-04-06
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70, 71
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : ; 6 (1 to 4); 7 (1 to 3); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4)
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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 4); 7 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 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 : 61 (1 to 4), 62 (2), 63 (2 to 3), 64 (1)
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