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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 36 (1 to 6); 37 (, 1 to 6); 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 9); 47 (, 1 to 9); 48 (, 1 to 9); 49 (, 1 to 9); 50 (, 1 to 9); 51 (, 1 to 9); 52 (, 1 to 9); 53 (, 1 to 9); 54 (, 1 to 9); 55 (, 1 to 9); 56 (, 1 to 9); 57 (, 1 to 9); 58 (, 1 to 9); 59 (, 1 to 8); 60 (, 1 to 9); 61 (, 1 to 3); 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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1 to 12
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 36(1-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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36 to 61
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Portico
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Preserved
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2026-02-12
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Preserved : 2003: 39(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 40(5)
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Portico
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Preserved
|
2026-02-12
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Preserved : 2006: 42(4), 2007: 43(3-5), 2008: 44(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2010: 46(2, 9), 2011: 47(1, 8), 2012: 48(4, 8), 2013: 49(1-5, 8-9), 2014: 50(1-9), 2015: 51(1-9), 2016: 52(1-9), 2017: 53(1-9), 2018: 54(1-9), 2019: 55(1-9), 2020: 56(1-9), 2021: 57(1, S 1, 2-9), 2022: 58(1, S 1, 2-9), 2023: 59(1-9), 2024: 60(1-9), 2025: 61(1-9)
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LOCKSS Archive
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In Progress
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2026-02-09
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48, 55
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LOCKSS Archive
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Preserved
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2026-02-09
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49 to 54
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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 (2 to 6); 36 (1 to 6); 37 (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 9); 47 (1 to 9)
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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 (2 to 6); 36 (1 to 6); 37 (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 9); 47 (1 to 9)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 4 (1 to 6); 5 (1 to 9); 6 (1 to 6); 36 (1 to 6); 37 (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 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 9); 54 (1 to 9); 55 (1 to 9); 56 (1 to 9); 57 (Suppl 1, 1 to 9); 58 (Suppl 1, 1 to 9); 59 (1 to 8)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 4 (1 to 6); 5 (1 to 9); 6 (1 to 6); 36 (1 to 6); 37 (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 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 9); 54 (1 to 9); 55 (1 to 9); 56 (1 to 9); 57 (Suppl 1, 1 to 9); 58 (Suppl 1, 1 to 9); 59 (1 to 8)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 36 (6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1, 3-6); 42 (1-4); 43 (1, 3-6); 44 (1-6); 45 (1-6); 46 (1-9); 47 (1-9); 48 (1-9); 49 (1-9); 50 (1-9); 51 (1-9); 52 (1-9); 53 (1-9); 54 (1-9); 55 (1-5)
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Library of Congress
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Preserved
|
2025-04-07
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53 (7 to 9); 54 (1 to 9); 55 (1 to 9); 56 (1 to 9); 57 (1, S1, 2 to 9); 58 (1, S1, 2 to 9); 59 (1 to 9); 60 (1 to 5)
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