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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1, 2, 3-4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 6); 7 (1 to 6); 8 (1 to 5); 9 (2 to 6); 10 (1 to 6); 11 (1-2, 3 to 6); 12 (1 to 6, 7-8); 13 (1 to 8); 14 (1 to 6, 7-8); 15 (1 to 8); 16 (1 to 8); 17 (1 to 6, 7-8); 18 (1 to 8); 19 (1 to 8); 20 (1 to 8); 21 (1, 2)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 20
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CLOCKSS Archive
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In Progress
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2026-04-06
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1, 12 to 14, 16 to 21
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Portico
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Preserved
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2026-04-09
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Preserved : 2006: 1(1-4), 2007: 2(1-4), 2008: 3(1-4), 2009: 4(1-4), 2010: 5(1-4), 2011: 6(1-6), 2012: 7(1-6), 2013: 8(1-6), 2014: 9(1-6), 2015: 10(1-6), 2016: 11(1-8), 2017: 12(1-8), 2018: 13(1-8), 2019: 14(1-8), 2020: 15(1-8), 2021: 16(1-8), 2022: 17(1-8), 2023: 18(1-8), 2024: 19(1-8), 2025: 20(1-8), 2026: 21(1-3)
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CLOCKSS Archive
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Preserved
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2026-04-06
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2 to 11, 15
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LOCKSS Archive
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In Progress
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2026-04-06
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21
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Library of Congress
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Preserved
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2025-04-07
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5 (1 to 4); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1-2, 3 to 7-8); 12 (1 to 7-8); 13 (1 to 8); 14 (1 to 7-8); 15 (1 to 8); 16 (1 to 8); 17 (1 to 7-8); 18 (1 to 8); 19 (1 to 8); 20 (1)
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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 (2-4); 3 (1, 2, 3-4); 4 (2-4); 5 (1-4); 6 (1-6); 7 (1-6); 8 (1, 3-6); 9 (1-6); 10 (1-4); 11 (1-2, 3-5, 7-8); 12 (1-6, 7-8); 13 (1-8); 14 (1-6, 7-8)
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British Library
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Preserved
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2019-09-18
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Preserved : 9 (1 to 6), 10 (1 to 6), 11 (3 to 6), 12 (1 to 6), 13 (1 to 7)
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