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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (Suppl, 1 to 3); 30 (1 to 3); 31 (1 to 3); 32 (1, 2)
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LOCKSS Archive
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In Progress
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2026-04-06
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20 to 26
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CLOCKSS Archive
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Preserved
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2026-04-06
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20 to 32
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Portico
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Preserved
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2026-04-02
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Preserved : 2014: 20(1-2), 2015: 21(1-2), 2016: 22(1-2), 2017: 23(1-2), 2018: 24(1-2), 2019: 25(1-3), 2019/2020: 26(1-3), 2021: 27(1-3), 2022: 28(1-3), 2023: 29(1, S 1, 2-3), 2024: 30(1-3), 2025: 31(1-3), 2026: 32(1-2)
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Library of Congress
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Preserved
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2025-04-07
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22 (1); 23 (1, 2); 24 (1, 2); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1, S1, 2, 3); 30 (1 to 3); 31 (1)
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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 : 20 (2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1-3)
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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 (1 to 3); 29 (Suppl 1, 1 to 3)
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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 : 3 (1 to 3); 29 (Suppl 1, 1 to 3)
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