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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 42 (1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 5); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 3, 4); 63 (, 1, 2, 4); 64 (, 1 to 4); 65 (, 1 to 4); 67 (, 2 to 4); 68 (, 1, 2, 4); 70 (, 1); 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 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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15 to 60
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Portico
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Preserved
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2026-02-12
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Preserved : 1961: 6(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1998: 43(4)
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LOCKSS Archive
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Preserved
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2026-02-09
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53 to 69
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CLOCKSS Archive
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In Progress
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2026-02-09
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53, 61 to 70
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CLOCKSS Archive
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Preserved
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2026-02-09
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54 to 60
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 57(1-4), 2012/2013: 58(1-4), 2014: 59(1-4), 2014/2015: 60(1-4), 2015/2016: 61(1-4), 2016/2017: 62(1-4), 2018: 63(1-4), 2019: 64(1-4), 2020: 65(1-4), 2021: 66(1-4), 2022: 67(1-4), 2023: 68(1-4), 2024: 69(1-4), 2025: 70(1-4), 2026: 71(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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70
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : ; 6 (1 to 4); 7 (1 to 3); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4)
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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 : ; 6 (1 to 4); 7 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4)
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British Library
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Preserved
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2019-09-18
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Preserved : 61 (1 to 4), 62 (2), 63 (2 to 3), 64 (1)
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