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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 52 (1-2); 53 (, 1-2); 54 (, 1, 2); 55 (, 1, 2); 56 (, 1, 2); 57 (, 1, 2); 58 (, 1); 59 (, 1, 2); 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024
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Internet Archive
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Preserved
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2025-08-08
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3 to 20
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LOCKSS Archive
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In Progress
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2026-02-09
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52 to 55
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CLOCKSS Archive
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Preserved
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2026-02-09
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52 to 60
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Portico
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Preserved
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2026-02-12
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Preserved : 2017: 52(1-2), 2018: 53(1-2), 2019: 54(1, S 1, 2), 2020: 55(1, S 1, 2), 2021: 56(1-2), 2022: 57(1-2), 2023: 58(1, S 1, 2, S 2), 2024: 59(1, S 1, 2), 2025: 60(1)
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Library of Congress
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Preserved
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2025-04-07
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52 (1-2); 53 (1-2); 54 (S1, 1, 2); 55 (1, S1, 2); 56 (1, 2); 57 (1, 2); 58 (1, S1, 2, S2); 59 (S1, 1)
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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 : 53 (1-2); 54 (Suppl 1, 1, 2); 55 (Suppl 1, 1, 2); 59 (Suppl 1, 1, 2)
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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 : 53 (1-2); 54 (Suppl 1, 1, 2); 55 (Suppl 1, 1, 2); 59 (Suppl 1, 1, 2)
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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 : 52 (1-2); 53; 54
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