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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 (1-2, 3); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 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); 18 (1); 20 (2 to 6); 21 (1); 22 (2 to 6); 23 (1 to 7); 24 (1, 2, 5 to 7); 25 (1 to 7); 26 (1 to 7); 27 (1 to 7); 28 (1, 3 to 7); 29 (1 to 7); 30 (2 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 5, 6-7, 8); 36 (3 to 8); 37 (1 to 8); 38 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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9 to 18
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 36
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CLOCKSS Archive
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Preserved
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2026-04-06
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ahead-of-print to 37
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LOCKSS Archive
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In Progress
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2026-04-06
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37, 38
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Portico
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Preserved
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2026-04-09
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Preserved : 1989: 1(1-3), 1990: 2(1-3), 1991: 3(1-3), 1992: 4(1-3), 1993: 5(1-3), 1994: 6(1-3), 1995: 7(1-3), 1996: 8(1-3), 1997: 9(1-4), 1998: 10(1-4), 1999: 11(1-4), 2000: 12(1-4), 2001: 13(1-4), 2002: 14(1-4), 2003: 15(1-4), 2004: 16(1-4), 2005: 17(1-5), 2006: 18(1-6), 2007: 19(1-6), 2008: 20(1-6), 2009: 21(1-6), 2010: 22(1-6), 2011: 23(1-7), 2012: 24(1-7), 2013: 25(1-7), 2014: 26(1-7), 2015: 27(1-7), 2016: 28(1-7), 2017: 29(1-7), 2018: 30(1-8), 2019: 31(1-8), 2020: 32(1-8), 2021: 33(1-8), 2022: 34(1-8), 2023: 35(1-8), 2024: 36(1-8), 2025: 37(1-8), 2026: 38(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 : 1 (1 to 4); 2 (1 to 6); 3 (1 to 8); 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 5); 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 7); 26 (1 to 7); 27 (1 to 7); 28 (1 to 7); 29 (1 to 7); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 5, 6-7); 36 (1 to 8); 37 (1, 2)
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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 (1-3); 2 (1-3); 3 (1-3); 4 (1-2, 3); 5 (1-3); 6 (1-3); 7 (1-3); 8 (1-3); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-5); 18 (1-6); 19 (1-6); 20 (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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22 (1 to 6); 23 (1 to 7); 24 (1 to 7); 25 (1 to 7); 26 (1 to 7); 27 (1 to 7); 28 (1 to 7); 29 (1 to 7); 30 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 6-7, 8); 36 (1 to 7)
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