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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 4); 73 (, 1 to 4); 74 (, 2 to 4); 75 (, 1, 2); 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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CLOCKSS Archive
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Preserved
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2026-02-09
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47 to 75
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 47(1-4), 1998: 48(1-4), 1999: 49(1-4), 2000: 50(1-4), 2001: 51(1-4), 2002: 52(1-4), 2003: 53(1-4), 2004: 54(1-4), 2005: 55(1-4), 2006: 56(1-4), 2007: 57(1-4), 2008: 58(1-4), 2009: 59(1-4), 2010: 60(1-4), 2011: 61(1-4), 2012: 62(1-4), 2013: 63(1-4), 2014: 64(1-2), 2015: 65(1-4), 2016: 66(1-4), 2017: 67(1-4), 2018: 68(1-4), 2019: 69(1-4), 2019/2020: 70(1-4), 2021: 71(1-4), 2022: 72(1-4), 2023: 73(1-4), 2024: 74(1-4), 2025: 75(2-4)
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LOCKSS Archive
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In Progress
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2026-02-09
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62, 69
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LOCKSS Archive
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Preserved
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2026-02-09
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63 to 68
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Library of Congress
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Preserved
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2025-04-07
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68 (1 to 4); 69 (1 to 4); 70 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (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 (1 to 4); 6 (1 to 4); 7 (1 to 4); 47 (1 to 4); 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); 72 (1 to 4); 73 (1 to 4); 74 (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 (1 to 4); 6 (1 to 4); 7 (1 to 4); 47 (1 to 4); 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); 72 (1 to 4); 73 (1 to 4); 74 (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 : 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-3); 55 (1-4); 56 (1-4); 57 (2-4); 58 (1-4); 59 (1, 2, 4); 60 (1-4); 61 (1-4); 62 (1-4); 63 (1-4); 64 (1-4); 65 (1-4); 66 (1-4); 67 (1-4); 68 (1-4); 69 (1-3)
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