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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 38 (1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1, 2-6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 5); 2000; 2001; 2002; 2003; 2004; 2005; 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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1 to 15
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 38(1-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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38 to 62
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 43(5), 2006: 44(5)
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LOCKSS Archive
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In Progress
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2026-02-09
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50, 57
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 50(3, 5-6), 2013: 51(1-6), 2014: 52(1-4), 2015: 53(1-6), 2016: 54(1-6), 2017: 55(1-6), 2018: 56(1-6), 2019/2020: 57(1-6), 2020: 58(1-6), 2021: 59(1-6), 2022: 60(1, S 1, 2, S 2, 3, S 3, 4-6), 2023: 61(1-6), 2024: 62(2, 4-6)
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LOCKSS Archive
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Preserved
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2026-02-09
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51 to 56
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Library of Congress
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Preserved
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2025-04-07
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56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1, 2-6); 60 (1, S1, S2, 2, S3, 3 to 6); 61 (1 to 6)
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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 : 4 (1 to 6); 5 (1 to 6); 6 (Suppl 3, 1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1, 2, 5, 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1, 2-6)
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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 : 4 (1 to 6); 5 (1 to 6); 6 (Suppl 3, 1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1, 2, 5, 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1, 2-6)
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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 : 46 (3); 48 (2 to 6); 49 (1 to 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 : 46 (3); 48 (2 to 6); 49 (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 : 38 (3, 6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-6); 45 (1, 3-6); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-6); 54 (1-6); 55 (1-6); 56 (1-6); 57 (1-4)
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