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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 43 (1 to 4); 44 (, 1 to 3, 4); 45 (, 1 to 4); 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 (, 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); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 3); 1996; 1997; 1998; 1999; 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; 2025
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Internet Archive
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Preserved
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2025-08-08
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44 to 47
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 34(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1996: 43(1-4), 1997: 44(1-4), 1998: 45(1-4), 1999: 46(1-4), 2000: 47(1-4), 2001: 48(4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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43 to 73
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 51(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 53(1, 3), 2007: 54(1, 3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 55(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 58(3)
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LOCKSS Archive
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In Progress
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2026-02-09
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59, 66
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 59(4), 2013: 60(1-4), 2014: 61(1-4), 2015: 62(3-4), 2016: 63(1-4), 2017: 64(1-4), 2018: 65(1-4), 2019: 66(1-4), 2019/2020: 67(1-4), 2021: 68(1-4), 2022: 69(1-4), 2023: 70(2-4), 2024: 71(1-4), 2025: 72(1-4), 2026: 73(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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60 to 65
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Library of Congress
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Preserved
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2025-04-07
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65 (2 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 70 (1 to 4); 71 (1 to 3)
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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 : 5 (2 to 4); 6 (1 to 4); 7 (1 to 4); 44 (1, 2, 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 3); 48 (1 to 4); 49 (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); 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); 71 (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 : 5 (2 to 4); 6 (1 to 4); 7 (1 to 4); 44 (1, 2, 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 3); 48 (1 to 4); 49 (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); 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); 71 (1 to 4)
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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 : 44 (4); 46 (2, 3); 47 (1, 2, 3-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1, 2, 4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4); 58 (1-4); 59 (1-4); 60 (1-4); 61 (1-4); 62 (1-4); 63 (1-4); 64 (1-4); 65 (1-4); 66 (1-4)
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