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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, 2); 2 (1, 2, 3-4); 3 (1 to 4); 4 (1-4); 5 (2 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 6); 20 (1 to 6); 21 (sup1, 1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 7); 27 (1 to 8); 28 (1, 3 to 8); 29 (1 to 8); 30 (1 to 8); 31 (1); 42 (2, 7, 8)
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Internet Archive
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Preserved
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2025-08-08
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5 to 17
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Portico
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Preserved
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2026-04-23
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Preserved : 1999: 10(3)
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Portico
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Preserved
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2026-04-23
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Preserved : 2009: 16(2-4), 2010: 17(1-4), 2011: 18(1-4), 2011/2012: 19(1-6), 2013: 20(1-6), 2014: 21(1, S 1, 2-6), 2014/2015: 22(1-6)
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CLOCKSS Archive
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Preserved
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2026-04-13
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10 to 30
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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 31
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 31
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LOCKSS Archive
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In Progress
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2026-04-13
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32
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Portico
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Preserved
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2026-04-23
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Preserved : 1996: 3(1-4), 1997: 4(1-4), 1998: 5(1-4), 1999: 6(1-4), 2000: 7(1-4), 2001: 8(1-4), 2002: 9(1-4), 2003: 10(1-4), 2004: 11(1-4), 2005: 12(1-4), 2006: 13(1-4), 2007: 14(1-4), 2007/2008: 15(1-4), 2009: 16(1-4), 2010: 17(1-4), 2011: 18(1-4), 2012: 19(1-6), 2013: 20(1-6), 2014: 21(1-6), 2015: 22(1-6), 2016: 23(1-6), 2017: 24(1-6), 2018: 25(1-6), 2019: 26(1-7), 2020: 27(1-8), 2021: 28(1-8), 2022: 29(1-8), 2023: 30(1-8), 2024: 31(1), 2025: 32(1)
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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); 2 (1 to 6); 3 (1 to 8); 4 (1-4); 5 (2 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 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 6); 21 (sup1, 1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 7); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1)
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Library of Congress
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Preserved
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2025-04-07
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17 (1 to 4); 18 (1 to 4); 19 (1 to 6); 20 (1 to 6); 21 (sup1, 1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 7); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 30 (1 to 8)
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