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Internet Archive
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Preserved
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2025-08-08
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1 to 19
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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 3); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1 to 3); 11 (1 to 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (2 to 4); 19 (1, 2, 4); 20 (1, 2); 24 (1 to 5); 25 (1 to 6); 26 (1, 4 to 6); 27 (1 to 7); 28 (1 to 7); 29 (1 to 7); 30 (1 to 7); 31 (1 to 7); 32 (1 to 10); 33 (1 to 10); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1, 3 to 12); 39 (1 to 12); 40 (1, 2)
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LOCKSS Archive
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Preserved
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2026-04-27
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1 to 38
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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 to 39
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LOCKSS Archive
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In Progress
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2026-04-27
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39, 40
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Portico
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Preserved
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2026-04-23
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Preserved : 1999: 13(1-3), 2000: 14(1-3), 2001: 15(1-3), 2002: 16(1-3), 2003: 17(1-3), 2004: 18(1-3)
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Portico
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Preserved
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2026-04-23
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Preserved : 2005: 19(1-4), 2006: 20(1-4), 2007: 21(1-4), 2008: 22(1-4), 2009: 23(1-6), 2010: 24(1-6), 2011: 25(1-6), 2012: 26(1-6), 2013: 27(1-7), 2014: 28(1-7), 2015: 29(1-7), 2016: 30(1-7), 2017: 31(1-7), 2018: 32(1-10), 2019: 33(1-10), 2020: 34(1-12), 2021: 35(1-12), 2022: 36(1-12), 2023: 37(1-12), 2024: 38(1-6, 8-12), 2025: 39(1-12), 2026: 40(1-3)
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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 : 2 (2 to 4); 3 (1 to 7); 11 (1 to 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 7); 28 (1 to 7); 29 (1 to 7); 31 (1 to 7); 32 (1 to 9); 33 (1 to 9); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 12); 38 (1 to 9, 11, 12); 39 (1)
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Library of Congress
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Preserved
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2025-04-07
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24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 7); 28 (1 to 7); 29 (1 to 7); 30 (1 to 7); 31 (1 to 7); 32 (1 to 10); 33 (1 to 10); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 11)
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