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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 29 (1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 34 (, 5 to 8, 11, 12); 35 (, 1 to 3, 6); 36 (, 1, 3, 4, 12); 37 (, 1 to 8); 38 (, 1 to 14); 39 (, 1 to 16); 40 (, 1 to 6, 13 to 16); 41 (, 1 to 16); 42 (, 1, 2, 3-4, 5 to 16); 43 (, 1 to 7, 8-10, 11 to 13, 16 to 20); 44 (, 1 to 4, 6 to 20); 45 (, 1 to 11, 15 to 20); 46 (, 1 to 10, 11-12, 13, 14-15, 16-17, 18, 19-20); 47 (, 1-2, 3, 4-5, 6-7, 8, 9-10, 11-12, 13, 14-15, 16-17, 18, 19-20); 48 (, 1-2, 3, 4-5, 6-7, 8, 9-10, 11, 12-13, 14-15, 16-17, 18, 19-20); 49 (, 1-2, 3, 4-5, 6-7, 8, 9-10, 11-12, 13-14, 15, 16-17, 18-19, 20); 50 (, 1-2, 3, 4-5, 6-7, 8, 9-10, 11-12, 13, 14-15, 16-17, 18, 19-20); 51 (, 1 to 20); 52 (, 1 to 6, 9 to 11); 2001; 2002; 2003; 2004; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024
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Internet Archive
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Preserved
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2025-08-08
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5 to 26
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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, 29 to 52
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LOCKSS Archive
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Preserved
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2026-02-09
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29 to 52
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 14(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 25(1-10), 1998: 26(1-10)
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 29(1-12), 2002: 30(1-12), 2003: 31(1-12), 2004: 32(1-12), 2004/2005: 33(1-12), 2006: 34(1-12), 2007: 35(1-12), 2008: 36(1-12), 2008/2009: 37(1-12), 2009/2010: 38(1-14), 2011: 39(1-16), 2011/2012: 40(1-16), 2013: 41(1-16), 2014: 42(1-16), 2015: 43(1-20), 2016: 44(1-20), 2017: 45(1-20), 2018: 46(1-20), 2019: 47(1-20), 2020/2021: 48(1-20), 2021/2022: 49(1-20), 2022: 50(1-20), 2023: 51(1-20), 2024: 52(1-11)
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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 : 3 (1 to 9, 11, 12); 4 (1 to 9, 11 to 16); 5 (1-2, 3, 4-5, 6-7, 8, 9-1, 11-12, 13, 14-15, 16-17, 18, 19-2); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 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 to 14); 39 (1 to 9, 11 to 16); 41 (1 to 9, 11 to 16); 42 (1, 2, 3-4, 5 to 9, 11 to 16); 43 (1 to 7, 8-1, 11 to 19); 44 (1 to 9, 11 to 19); 45 (1 to 9, 11 to 19); 46 (1 to 9, 11-12, 13, 14-15, 16-17, 18, 19-2); 47 (1-2, 3, 4-5, 6-7, 8, 9-1, 11-12, 13, 14-15, 16-17, 18, 19-2); 48 (1-2, 3, 4-5, 6-7, 8, 9-1, 11, 12-13, 14-15, 16-17, 18, 19-2); 49 (1-2, 2, 3, 4-5, 6-7, 8, 9-1, 11-12, 13-14, 15, 16-17, 18-19); 51 (1 to 9, 11 to 19); 52 (1 to 9, 11)
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Library of Congress
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Preserved
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2025-04-07
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39 (8); 40 (6, 16); 45 (5 to 20); 46 (1 to 11-12, 13, 14-15, 16-17, 18, 19-20); 47 (1-2, 3, 4-5, 6-7, 8, 9-10, 11-12, 13, 14-15, 16-17, 18, 19-20); 48 (1-2, 3, 4-5, 6-7, 8, 9-10, 11, 12-13, 14-15, 16-17, 18, 19-20); 49 (1-2, 3, 4-5, 6-7, 8, 9-10, 11-12, 13-14, 15, 16-17, 18-19, 20); 50 (1-2, 3, 4-5, 6-7, 8, 9-10, 11-12, 13, 14-15, 16-17, 18, 19-20); 51 (1 to 20); 52 (1 to 11)
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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, 2, 3-4); 4 (1, 2-3, 4); 5 (1-6); 6 (1-6); 7 (1-6); 8 (1-3, 4-5, 6); 9 (1, 2-3, 4-5, 6); 10 (1, 2-3, 4, 5-6); 11 (1-6); 12 (1-3, 4-5, 6); 13 (1-6); 14 (1, 2, 3-4, 5, 6); 15 (1-3, 4-5, 6); 16 (1-6); 17 (1-3, 4-5, 6); 18 (1-3, 4-5, 6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-8); 25 (1-10); 26 (1-10); 29 (1-12); 30 (1-12); 31 (1-12); 32 (1-12); 34 (5-12); 35 (1-12); 36 (1-12)
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