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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 50 (1 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 1 to 12); 55 (, 1 to 12); 56 (, 1 to 12); 57 (, 1 to 12); 58 (, 1 to 12); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1 to 11); 67 (, 1 to 12); 68 (, 1 to 3); 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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LOCKSS Archive
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In Progress
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2026-02-09
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CLOCKSS Archive
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Preserved
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2026-02-09
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50 to 68
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 50(1-12), 2008: 51(1-12), 2009: 52(1-12), 2010: 53(1-12), 2011: 54(1-12), 2012: 55(1-5, 8-12), 2013: 56(1-3, 5, 8-12), 2014: 57(1-8, 11-12), 2015: 58(1-12), 2016: 59(1-12), 2017: 60(1-12), 2018: 61(1-12), 2019/2020: 62(1-12), 2020: 63(1-12), 2021: 64(1-12), 2022: 65(1-8, 10-12), 2023: 66(1-12), 2024: 67(1-10), 2025: 68(1-10)
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Library of Congress
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Preserved
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2025-04-07
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60 (8, 11, 12); 61 (1 to 12); 62 (1 to 12); 63 (1 to 12); 64 (1 to 12); 65 (1 to 12); 66 (1 to 12); 67 (1 to 7)
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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 9, 11, 12); 6 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1, 2, 6 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9); 67 (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 : 5 (1 to 9, 11, 12); 6 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1, 2, 6 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9); 67 (1 to 9)
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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 : 52 (12); 53 (1 to 9, 11, 12); 54 (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 : 52 (12); 53 (1 to 9, 11, 12); 54 (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 : 50 (1-12); 51 (1-12); 52 (1-12); 53 (1-12); 54 (1-12); 55 (1-12); 56 (1-5, 7-12); 57 (1-12); 58 (1-12); 59 (1-12); 60 (1-12); 61 (1-11); 62 (2-7)
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