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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 5 (2 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 6); 15 (1 to 6); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12)
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CLOCKSS Archive
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Preserved
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2026-04-06
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5 to 19
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Portico
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Preserved
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2026-04-02
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Preserved : 2011: 5(1-4), 2012: 6(1-4), 2013: 7(1-4), 2014: 8(1-2, 4), 2015: 9(1-4), 2016: 10(1-4), 2017: 11(1-4), 2018: 12(2-4), 2019: 13(1-4), 2019/2020: 14(1-6), 2021: 15(1-6), 2022: 16(1-12), 2023: 17(1-12), 2024: 18(1-12), 2025: 19(1-12)
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LOCKSS Archive
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In Progress
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2026-04-06
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6 to 14
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Library of Congress
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Preserved
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2025-04-07
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10 (4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 6); 15 (1 to 6); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12)
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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 : 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-3)
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