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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 to 4); 5 (1, 2-3, 4); 6 (1 to 4); 7 (1 to 4); 8 (1); 9; 14 (2 to 8); 15 (1 to 10); 16 (1 to 4, 9 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 8, 10 to 12); 20 (1 to 3, 6 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 6, 7-8, 9 to 12); 24 (1 to 14); 25 (1 to 14); 26 (1 to 14); 27 (1 to 14); 28 (1, 3 to 14); 29 (1 to 14); 30 (1 to 3)
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 28
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CLOCKSS Archive
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Preserved
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2026-04-13
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ahead-of-print to 30
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LOCKSS Archive
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In Progress
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2026-04-13
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29, 30
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 1(1-4), 1998: 2(1-4), 1999: 3(1-4), 2000: 4(1-4), 2001: 5(1-4), 2002: 6(1-4), 2003: 7(1-4), 2004: 8(1-4), 2005: 9(1-4), 2006: 10(1-3), 2006/2007: 11(1-6), 2006/2008: 12(1-6), 2009: 13(1-8), 2010: 14(1-8), 2011: 15(1-10), 2012: 16(1-12), 2013: 17(1-12), 2014: 18(1-12), 2015: 19(1-12), 2016: 20(1-12), 2017: 21(1-12), 2018: 22(1-12), 2019: 23(1-12), 2020: 24(1-14), 2021: 25(1-14), 2022: 26(1-14), 2023: 27(1-14), 2024: 28(1-14), 2025: 29(1-4, 6-14), 2026: 30(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 (1 to 4, 6); 2 (1 to 9, 11, 12); 3 (1 to 4); 4 (1 to 4); 5 (1, 2-3, 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4, 5-6); 12 (1 to 4, 5-6); 13 (1 to 8); 14 (1 to 8); 15 (1 to 9); 16 (1 to 4, 5-6, 7 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 6, 7-8, 9, 11, 12); 24 (1 to 9, 11 to 14); 25 (1, 2, 4 to 9, 11 to 14); 26 (1 to 9, 11 to 14); 27 (1 to 9, 11 to 13); 28 (1 to 9, 11 to 14); 29 (5, 6)
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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, 2-3, 4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1, 2-3, 6); 11 (1-4, 5-6); 12 (1-4, 5-6)
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Library of Congress
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Preserved
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2025-04-07
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21 (4 to 12); 22 (1 to 12); 23 (1 to 7-8, 9 to 12); 24 (1 to 14); 25 (1 to 14); 26 (1 to 14); 27 (1 to 14); 28 (1 to 13)
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