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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, 3-4); 2 (1 to 4); 3 (1 to 4); 4 (1, 2, 3-4); 5 (1-4); 6 (2 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 4); 20 (1 to 4); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 8); 30 (1 to 8); 31 (1 to 8); 32 (1 to 10); 33 (1 to 10); 34 (1 to 12); 35 (1 to 12); 36 (1 to 9, 11, 12); 37 (1 to 12); 38 (1 to 12); 39 (3 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (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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1 to 36
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LOCKSS Archive
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Preserved
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2026-03-30
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1 to 45
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CLOCKSS Archive
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Preserved
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2026-03-30
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ahead-of-print to 47
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LOCKSS Archive
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In Progress
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2026-03-30
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46, 47
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Portico
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Preserved
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2026-04-02
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Preserved : 1991: 12(1-4), 1992: 13(1-4), 1993: 14(1-4), 1994: 15(1-4), 1995: 16(1-4), 1996: 17(1-4), 1997: 18(1-4), 1998: 19(1-4), 1999: 20(1-4), 2000: 21(1-6), 2001: 22(1-6), 2002: 23(1-6), 2003: 24(1-6), 2004: 25(1-6), 2004/2005: 26(1-6), 2006: 27(1-6), 2007: 28(1-6), 2007/2008: 29(1-8), 2009: 30(1-8), 2010: 31(1-8), 2011: 32(1-10), 2012: 33(1-10), 2013: 34(1-12), 2014: 35(1-12), 2015: 36(1-12), 2016: 37(1-12), 2017: 38(1-12), 2018: 39(1-12), 2019: 40(1-12), 2020: 41(1-12), 2021: 42(1-12), 2022: 43(1-12), 2023: 44(1-12), 2024: 45(1-12), 2025: 46(1-12), 2026: 47(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 8); 4 (1 to 9, 11, 12); 18 (1 to 4); 19 (1 to 4); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 8); 31 (1 to 8); 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, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (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 : 20 (1-4); 21 (1-6); 22 (2-6); 23 (1-6); 24 (2-6); 25 (1-6); 26 (1, 3-6); 27 (1, 3, 4, 6); 28 (1-6); 29 (1-8)
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Library of Congress
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Preserved
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2025-04-07
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38 (4 to 12); 39 (1 to 12); 40 (1 to 5, 7 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 11)
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