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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 31 (1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1, 2, 3-4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1-2, 2 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 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, 2-3, 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, 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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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 40(2), 2007: 41(1-4), 2008: 42(1-4), 2009: 43(1-4), 2010: 44(1-4), 2011: 45(1-4), 2012: 46(2, 4), 2013: 47(1-4), 2014: 48(1-4), 2015: 49(1-4), 2016: 50(1-4), 2017: 51(1-4), 2018: 52(1-4), 2019: 53(1-4), 2019/2020: 54(1-4), 2021: 55(1-4), 2022: 56(1-4), 2023: 57(1-4), 2024: 58(1-4), 2025: 59(1-4), 2026: 60(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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46, 53
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LOCKSS Archive
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Preserved
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2026-02-09
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47 to 52
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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 : 3; 4 (1 to 4); 5 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 3); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1, 2-3, 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)
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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; 4 (1 to 4); 5 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 3); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1, 2-3, 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)
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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 : 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-3); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1, 2, 4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1, 3, 4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1, 2-3, 4); 53 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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52 (1, 2-3, 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 3)
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