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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 27 (6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 9); 38 (1 to 10); 39 (1 to 10); 40 (1 to 10); 41 (1 to 10); 42 (1 to 10); 43 (1 to 10); 44 (1 to 10); 45 (1 to 10); 46 (1 to 12); 47 (1 to 12); 48 (Suppl, 1 to 12); 49 (Suppl, 1 to 12); 50 (Suppl, 1 to 8, 10 to 12); 51 (Suppl, 1 to 12); 52 (1 to 12)
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CLOCKSS Archive
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Preserved
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2026-04-06
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27 to 52
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Portico
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Preserved
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2026-04-09
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Preserved : 2004: 31(1, 3)
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Portico
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Preserved
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2026-04-09
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Preserved : 2005: 32(5-6), 2006: 33(2, 4)
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LOCKSS Archive
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In Progress
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2026-04-06
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39, 46
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Portico
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Preserved
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2026-04-09
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Preserved : 2012: 39(8-10), 2013: 40(1-10), 2014: 41(1-10), 2015: 42(2-10), 2016: 43(1-10), 2017: 44(1-10), 2018: 45(1-10), 2019/2020: 46(1-12), 2020: 47(1-12), 2021: 48(1, S 1, 2, S 2, 3, S 3, 4-12), 2022: 49(1, S 1, 2, S 2, 3, S 3, 4-6, 9-12), 2023: 50(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5-12), 2024: 51(1, S 1, 2, S 2, 3, S 3, 4-6, 8, 11), 2025/2026: 52(1-12), 2026: 53(1)
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LOCKSS Archive
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Preserved
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2026-04-06
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40 to 45
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Library of Congress
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Preserved
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2025-04-07
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44 (6 to 10); 45 (1 to 10); 46 (1 to 12); 47 (1 to 12); 48 (1, S1, S2, 2, 3, S3, 4 to 12); 49 (S1, 1, 2, S2, S3, 3 to 12); 50 (1, S1, S2, 2, 3, S3, S4, 4 to 12); 51 (1 to 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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Preserved : 3 (2 to 6); 4 (1 to 9); 5 (Suppl 1, 1 to 9); 27 (6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 3, 5 to 9); 38 (1 to 9); 39 (1 to 9); 41 (1 to 9); 42 (1 to 9); 43 (1 to 9); 44 (1 to 9); 45 (1 to 9); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (Suppl 3, 1 to 9, 11, 12); 49 (Suppl 3, 1 to 9, 11, 12); 51 (Suppl 3, 1 to 8)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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|
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Preserved : 3 (2 to 6); 4 (1 to 9); 5 (Suppl 1, 1 to 9); 27 (6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 3, 5 to 9); 38 (1 to 9); 39 (1 to 9); 41 (1 to 9); 42 (1 to 9); 43 (1 to 9); 44 (1 to 9); 45 (1 to 9); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (Suppl 3, 1 to 9, 11, 12); 49 (Suppl 3, 1 to 9, 11, 12); 51 (Suppl 3, 1 to 8)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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|
|
Preserved : 35 (1, 2); 37 (3 to 9); 38 (1 to 3)
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|
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National Digital Preservation Program, China
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|
Preserved
|
2025-12-04
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|
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Preserved : 35 (1, 2); 37 (3 to 9); 38 (1 to 3)
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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 : 27 (6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-4, 6); 34 (1, 3-6); 35 (1-6); 36 (1-6); 37 (1-9); 38 (1-10); 39 (1-10); 40 (1-10); 41 (1-10); 42 (1-10); 43 (1-10); 44 (1-10); 45 (1-10); 46 (1-5)
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