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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1-2, 3, 4); 8 (1, 2); 9 (1, 2); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 3); 16 (1 to 4); 17 (1, 2-3, 4, 5); 18 (1, 2, 5); 19 (1 to 5); 20 (sup1, 1 to 5); 21 (1 to 6); 22 (1 to 8); 23 (1 to 7); 24 (1 to 8); 25 (1 to 9); 26 (1 to 9); 27 (1 to 7, 8-9); 28 (1 to 7, 8-9); 29 (1, 2-3, 4 to 7, 8-9); 30 (2 to 5, 6-7, 8-9); 31 (1-5, 6-9)
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Portico
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Preserved
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2026-04-23
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Preserved : 2006: 11(4), 2006: 12(1, 3-4), 2007: 13(1-4), 2007: 14(1)
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LOCKSS Archive
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Preserved
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2026-04-27
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1 to 30
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CLOCKSS Archive
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Preserved
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2026-04-27
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ahead-of-print to 31
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LOCKSS Archive
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In Progress
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2026-04-27
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31
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Portico
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Preserved
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2026-04-23
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Preserved : 2000/2001: 6(1-4)
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Portico
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Preserved
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2026-04-23
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Preserved : 2011: 17(1-5), 2012: 18(1-5), 2013: 19(1-5), 2014: 20(1-5), 2015: 21(1-6), 2016: 22(1-8), 2017: 23(1-8), 2018: 24(1-8), 2019: 25(1-9), 2020: 26(1-9), 2021: 27(1-9), 2022: 28(1-9), 2023: 29(1-9), 2024: 30(1-9), 2025: 31(1-9)
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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 : 1 (2 to 4); 2 (sup1, 1 to 5); 3 (1 to 5, 6-7, 8-9); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1-2, 3, 4); 8 (1, 2); 9 (1, 2); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1, 2-3, 4, 5); 18 (1 to 5); 19 (1 to 5); 21 (1 to 6); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 9); 26 (1 to 9); 27 (1 to 7, 8-9); 28 (1 to 7, 8-9); 29 (1, 2-3, 4 to 7, 8-9)
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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 : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-2, 3, 4); 8 (1, 2); 9 (1, 2); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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23 (3 to 8); 24 (1 to 8); 25 (1 to 9); 26 (1 to 9); 27 (1 to 8-9); 28 (1 to 8-9); 29 (1, 2-3, 4 to 8-9); 30 (1 to 6-7)
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