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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 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 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 19 (5, 6); 21 (1, 2, 4 to 6); 23 (1 to 7); 24 (1 to 7); 25 (1 to 8); 26 (1 to 10); 27 (1 to 10); 28 (1 to 10); 29 (1 to 10); 30 (1 to 10); 31 (3 to 10); 32 (2 to 10); 33 (1 to 10); 34 (1 to 10); 35 (1 to 10); 36 (1 to 10); 37 (1 to 10); 38 (1 to 10)
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Internet Archive
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Preserved
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2025-08-08
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1 to 24
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CLOCKSS Archive
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Preserved
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2026-05-04
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1 to 38
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LOCKSS Archive
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Preserved
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2026-05-04
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1 to 37
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LOCKSS Archive
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In Progress
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2026-05-04
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38
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Portico
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Preserved
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2026-05-07
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Preserved : 1990: 3(1-4), 1991: 4(1-4), 1992: 5(1-4), 1993: 6(1-4), 1994: 7(1-4), 1995: 8(1-4), 1996: 9(1-4), 1997: 10(1-4), 1998: 11(1-4), 1999: 12(1-6), 2000: 13(1-6), 2001: 14(1-6), 2002: 15(1-6), 2003: 16(1-6), 2004: 17(1-6), 2005: 18(1-6), 2006: 19(1-6), 2007: 20(1-6), 2007/2008: 21(1-6), 2009: 22(1-6), 2010: 23(1-7), 2011: 24(1-7), 2012: 25(1-8), 2013: 26(1-10), 2014: 27(1-10), 2015: 28(1-10), 2016: 29(1-10), 2017: 30(1-10), 2018: 31(1-10), 2019: 32(1-10), 2020: 33(1-10), 2021: 34(1-10), 2022: 35(1-10), 2023: 36(1-10), 2024: 37(1-10), 2025: 38(1-10)
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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 9); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 7); 24 (1 to 7); 25 (1 to 8); 26 (1 to 9); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 32 (1 to 9); 33 (1 to 9); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (1 to 9); 38 (1 to 3)
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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 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-6); 13 (1-6); 14 (1-5); 15 (1-6); 16 (1-6); 17 (1-4, 6); 18 (2-6); 19 (1-3, 5, 6); 20 (1-6); 21 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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30 (5 to 10); 31 (1 to 9); 32 (1 to 10); 33 (1 to 10); 34 (1 to 10); 35 (1 to 10); 36 (1 to 10); 37 (1 to 10)
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