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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 48 (1, 2, 3-4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1, 2); 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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CLOCKSS Archive
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Preserved
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2026-02-09
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45 to 48, 52
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LOCKSS Archive
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Preserved
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2026-02-09
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48 to 56
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Portico
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Preserved
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2026-02-12
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Preserved : 2016: 48(1-4), 2017: 49(1-4), 2018: 50(1-4), 2019: 51(1-4), 2020: 52(1-4), 2021: 53(1-4), 2022: 54(1-4), 2023: 55(1-4), 2024: 56(1-4), 2025: 57(1-4), 2026: 58(1)
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CLOCKSS Archive
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In Progress
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2026-02-09
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49 to 51, 53 to 57
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LOCKSS Archive
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In Progress
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2026-02-09
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57
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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 : 48 (2, 3-4); 49 (1-4); 50 (1-4); 51 (1-4)
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British Library
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Preserved
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2019-09-18
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Preserved : 48 (1 to 2), 49 (1 to 4), 50 (1 to 3)
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Library of Congress
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Preserved
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2025-04-07
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48 (1 to 3-4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4)
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