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Internet Archive
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Preserved
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2025-08-08
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1
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 20 (4); 22 (, 3, 4); 23 (, 1 to 4); 24 (, 1 to 5); 25 (, 1 to 5); 26 (, 1 to 5); 27 (, 1 to 5); 28 (, 1, 2); 2017; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 2017: 20(4)
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LOCKSS Archive
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In Progress
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2026-02-09
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22
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CLOCKSS Archive
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Preserved
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2026-02-09
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24 to 28
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Portico
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Preserved
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2026-02-12
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Preserved : 2021: 24(4-5), 2022: 25(1-5), 2023: 26(1-5), 2024: 27(1-3, 5), 2025: 28(1-4)
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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 : 22 (2 to 4); 23 (1 to 4); 27 (1 to 5)
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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 : 22 (2 to 4); 23 (1 to 4); 27 (1 to 5)
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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 (1-4); 21 (1-4); 22 (1-3)
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