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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 5 to 8); 3 (, 9 to 12); 4 (, 13 to 16); 5 (, 17 to 20); 6 (, 21 to 24); 7 (, 25 to 28); 8 (, 29 to 32); 9 (, 33 to 36); 10 (, 37 to 40); 11 (, 41, 42, 43-44); 12 (, 45 to 48); 14 (, 3); 15 (, 2-3); 17 (, 1 to 4); 18 (, 1); 19 (, 1-2, 3); 20 (, 1, 2, 3-4); 21 (, 1, 3, 4); 22 (, 1, 2, 3-4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 2 to 4); 26 (, 1 to 4); 27 (, 1, 3 to 5); 28 (, 1, 2-3, 4, 5); 29 (, 1 to 5); 30 (, 1 to 5); 31 (, 1 to 5); 32 (, 1 to 5); 33 (, 1 to 5); 34 (, 1 to 4); 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1998; 1999; 2000; 2001; 2002; 2005; 2006; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 33
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 34
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LOCKSS Archive
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In Progress
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2026-02-09
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34
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 1(1-4), 1990: 2(5-8), 1991: 3(9-12), 1992: 4(13-16), 1993: 5(17-20), 1994: 6(21-24), 1995: 7(25-28), 1998: 8(29-32), 1999: 9(33-36), 2000: 10(38-40)
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 11(43-44), 2002: 12(47-48), 2004: 13(1-4), 2005: 14(1-4), 2006: 15(1-4), 2007: 16(1-4), 2008: 17(1-4), 2009: 18(1-4), 2010: 19(1-4), 2011: 20(1-4), 2012: 21(1-4), 2013: 22(1-4), 2014: 23(1-4), 2015: 24(1-4), 2016: 25(1-4), 2017: 26(1-4), 2018: 27(1-5), 2019: 28(1-5), 2020: 29(1-5), 2021: 30(1-5), 2022: 31(1-5), 2023: 32(1-5), 2024: 33(1-5), 2025: 34(1-5), 2026: 35(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 (4, 37 to 39); 2 (1, 2, 3-4); 3 (1 to 5); 8 (3, 29, 31, 32); 9 (33 to 36); 11 (41, 42, 43-44); 12 (45 to 48); 13 (1 to 4); 14 (1 to 4); 15 (1, 2-3, 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1-2, 3, 4); 21 (1 to 4); 22 (1, 2, 3-4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 5); 28 (1, 2-3, 4, 5); 29 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (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 (1-4); 2 (5-8); 3 (9-12); 4 (1, 13-16); 5 (17-20); 6 (21-24); 7 (25-28); 8 (29-32); 9 (33-36); 10 (37-40); 11 (41, 42, 43-44); 12 (45-48); 13 (1-4); 14 (1-4); 15 (1, 2-3, 4); 16 (1-4); 17 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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19 (1-2, 3, 4); 20 (1 to 3-4); 21 (1 to 4); 22 (1 to 3-4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 5); 28 (2-3, 4, 5); 29 (1 to 5); 30 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5)
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