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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 to 4); 4 (1, 2, 3-4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1-2, 3-4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1-2, 3, 4); 16 (1 to 4); 17 (1 to 3, 4-5, 6); 18 (1 to 6); 19 (1 to 4, 5-6); 20 (1, 2-3, 4 to 6); 21 (1, 2-4, 5, 6); 22 (1 to 4, 5-6); 23 (1 to 4, 5-6); 24 (1 to 4, 5-6); 25 (1-2, 3-4, 5-6); 26 (1 to 4); 27 (1 to 4); 28 (1, 2, 3-4); 29 (1 to 4); 30 (2 to 4); 31 (1); 32
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Portico
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Preserved
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2026-04-16
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Preserved : 1995: 1(1-4), 1996: 2(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 32
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Portico
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Preserved
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2026-04-16
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Preserved : 2005: 11(4), 2006: 12(4)
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Portico
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Preserved
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2026-04-16
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Preserved : 2008: 14(1-4), 2009: 15(1-4), 2010: 16(1-4), 2011: 17(2-6), 2012: 18(1, 3-4, 6), 2013: 19(1-6), 2014: 20(1-6), 2015: 21(1-6), 2016: 22(1-6), 2017: 23(1-6), 2018: 24(1-6), 2019: 25(1-6), 2019/2020: 26(1-4), 2021: 27(1-4), 2022: 28(1-4), 2023: 29(1-4), 2024: 30(1-3), 2025: 31(1), 2026: 32(1)
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LOCKSS Archive
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In Progress
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2026-04-13
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18, 25
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LOCKSS Archive
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Preserved
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2026-04-13
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19 to 24
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 1 (1, 3); 2 (1 to 6); 3 (1 to 4); 4 (1 to 3); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1, 3, 4); 16 (1 to 4); 17 (1 to 4, 6); 18 (1 to 6); 19 (1 to 4); 21 (1, 2, 5, 6); 22 (1 to 5); 23 (1 to 5); 24 (1 to 4, 5-6); 25 (1-2, 3-4, 5-6); 26 (1 to 4); 27 (1 to 4); 28 (1, 2, 3-4); 29 (1 to 4)
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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 (1, 3); 2 (1 to 6); 3 (1 to 4); 4 (1 to 3); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1, 3, 4); 16 (1 to 4); 17 (1 to 4, 6); 18 (1 to 6); 19 (1 to 4); 21 (1, 2, 5, 6); 22 (1 to 5); 23 (1 to 5); 24 (1 to 4, 5-6); 25 (1-2, 3-4, 5-6); 26 (1 to 4); 27 (1 to 4); 28 (1, 2, 3-4); 29 (1 to 4)
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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 : 3 (1-4); 4 (1-3); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-3); 9 (1, 3, 4); 10 (1, 3); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-2, 3, 4); 16 (1-4); 17 (1-3, 4-5, 6); 18 (1-6); 19 (1-4, 5-6); 20 (1, 2-3, 4-6); 21 (1, 2-4, 5, 6); 22 (1-4, 5-6); 23 (1-4, 5-6); 24 (1-4, 5-6); 25 (1-2, 3-4)
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Library of Congress
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Preserved
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2025-04-07
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22 (5-6); 23 (5-6); 24 (1 to 5-6); 25 (1-2, 3-4, 5-6); 26 (1 to 4); 27 (1 to 4); 28 (1 to 3-4); 29 (1 to 4); 30 (1 to 3)
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