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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 3); 5 (sup1, 1, 2, 3-4); 6 (1 to 4); 7 (1, 2, 3-4); 8 (1 to 4); 9 (sup1, 1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 3, 5, 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 8); 19 (1 to 8); 20 (1 to 6, 7-8); 21 (1 to 6, 7-8); 22 (1 to 3, 4-5, 6-8); 23 (1-2, 3-4, 5-6, 7-8); 24 (1-5, 6-8); 25 (1-4, 5-8); 26 (1-4, 5-8); 27 (1-2, 3, 4-5); 87 (6)
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Portico
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Preserved
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2026-04-23
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Preserved : 2009: 11(2, 4), 2010: 12(1-6), 2011: 13(1-6), 2012: 14(2-6), 2013: 15(1-6), 2014: 16(1-6), 2015: 17(1-4)
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LOCKSS Archive
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Preserved
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2026-04-27
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4 to 26
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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, 4 to 27, 87
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LOCKSS Archive
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In Progress
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2026-04-27
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27
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Portico
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Preserved
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2026-04-23
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Preserved : 1999: 1(1-4), 2000: 2(1-4), 2001: 3(1-4), 2002: 4(1-3), 2003: 5(1-4), 2004: 6(1-4), 2005: 7(1-4), 2006: 8(1-4), 2007: 9(1-4), 2008: 10(1-4), 2009: 11(1-4), 2010: 12(1-4), 2011: 13(1-4), 2012: 14(1-3), 2013: 15(1-4), 2014: 16(1-6), 2015: 17(1-6), 2016: 18(1-8), 2017: 19(1-8), 2018: 20(1-8), 2019: 21(1-8), 2020: 22(1-8), 2021: 23(1-8), 2022: 24(1-8), 2023: 25(1-8), 2024: 26(1-8), 2025: 27(1-5)
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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 (1 to 6, 7-8); 4 (1 to 3); 5 (sup1, 1, 2, 3-4); 6 (1 to 4); 7 (1, 2, 3-4); 8 (1 to 4); 9 (sup1, 1 to 4); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 3, 5, 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 8); 19 (1 to 8); 21 (1 to 6, 7-8); 22 (1 to 3, 4-5, 6-8); 23 (1-2, 3-4, 5-6, 7-8); 24 (1-5, 6-8); 25 (1-4, 5-8); 26 (1-4, 5-8); 27 (3); 87 (6)
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Library of Congress
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Preserved
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2025-04-07
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12 (1 to 6); 13 (1 to 6); 14 (1 to 3, 5, 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 8); 19 (1 to 8); 20 (1 to 7-8); 21 (1 to 7-8); 22 (1 to 4-5, 6-8); 23 (1-2, 3-4, 5-6, 7-8); 24 (1-5, 6-8); 25 (1-4, 5-8); 26 (1-4); 87 (6)
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