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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 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 20 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 6); 24 (1 to 8); 25 (1 to 5, 6-7, 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 10); 30 (1 to 11); 31 (1 to 5, 7 to 12); 32 (1 to 12); 33 (1, 3 to 12); 34 (1 to 14); 35 (1 to 14); 36 (1 to 14); 37 (1 to 14); 38 (1 to 14); 39 (1, 3, 5 to 14); 40 (1 to 14); 41 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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9 to 30
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 39
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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 40
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LOCKSS Archive
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In Progress
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2026-04-13
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40, 41
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Portico
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Preserved
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2026-04-16
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Preserved : 1993: 5(1-4), 1994: 6(1-4), 1995: 7(1-4), 1996: 8(1-4), 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(1-3), 2005: 18(1-3), 2006: 19(1-3), 2006: 20(1-3), 2007: 21(1-3), 2007: 22(1-3), 2008: 23(1-6), 2009: 24(1-6), 2010: 25(1-8), 2011: 26(1-8), 2012: 27(1-8), 2013: 28(1-8), 2014: 29(1-10), 2015: 30(1-12), 2016: 31(1-12), 2017: 32(1-12), 2018: 33(1-12), 2019: 34(1-14), 2020: 35(1-14), 2021: 36(1-14), 2022: 37(1-14), 2023: 38(1-14), 2024: 39(1-14), 2025: 40(1-14), 2026: 41(1-4)
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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 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-3); 18 (1-3); 19 (1-3); 20 (1-3); 21 (1-3); 22 (1-3); 23 (1-6); 53 (7)
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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 3); 3 (1 to 9, 11, 12); 4 (1 to 3, 5, 6); 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 3); 18 (1 to 3); 19 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 6); 24 (1 to 8); 25 (1 to 5, 6-7, 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 9); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11 to 14); 35 (1 to 9, 11 to 14); 36 (1 to 9, 11 to 14); 37 (1 to 9, 11 to 14); 38 (1 to 9, 11 to 13); 39 (1 to 9, 11 to 14)
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Library of Congress
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Preserved
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2025-04-07
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25 (1 to 6-7, 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 10); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 14); 35 (1 to 14); 36 (1 to 14); 37 (1 to 14); 38 (1 to 5, 7 to 14); 39 (1 to 14)
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