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