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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1-2, 3, 4); 48 (1 to 4); 49 (1, 2, 3-4); 50 (1 to 4); 51 (1 to 4)
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LOCKSS Archive
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In Progress
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2026-04-13
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43 to 46
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CLOCKSS Archive
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Preserved
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2026-04-13
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43 to 51
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Portico
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Preserved
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2026-04-16
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Preserved : 2017: 43(1-4), 2018: 44(1-4), 2019: 45(1-4), 2020: 46(1-4), 2021: 47(1-4), 2022: 48(1-4), 2023: 49(1-4), 2024: 50(1-4), 2025: 51(1-4)
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Library of Congress
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Preserved
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2025-04-07
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44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1-2, 3, 4); 48 (1 to 4); 49 (1 to 3-4); 50 (1, 2)
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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 : 5 (1 to 3); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4)
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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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Preserved : 5 (1 to 3); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 43 (1-4); 44 (1-4); 45 (1-3)
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