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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 5); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1); 15 (, 1); 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 18
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 1(1-4), 2005: 2(1-4), 2006: 3(1-4), 2007: 4(1-4), 2008: 5(1-4), 2009: 6(1-4), 2010: 7(1-4), 2011: 8(1-4), 2012: 9(1-4), 2013: 10(1-4), 2014: 11(1-4), 2015: 12(1-4), 2016: 13(1-4), 2017: 14(1), 2018: 15(1), 2019: 16(1), 2020: 17(1), 2021: 18(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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9, 16
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LOCKSS Archive
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Preserved
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2026-02-09
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10 to 15
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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 : 14; 16; 17; 18
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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 : 14; 16; 17; 18
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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 : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (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 : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4)
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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 : 16; 17; 18
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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 : 16; 17; 18
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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 : 1 (1-4); 2 (1-4); 3 (supplement-1, 1-4); 4 (supplement-1, 1-4); 5 (supplement-1, 1-4); 6 (1-4); 7 (supplement-1, 1-4); 8 (supplement-1, 1-4); 9 (supplement-1, 1-4); 10 (supplement-1, 1-4); 11 (supplement-1, 1-4); 12 (supplement-1, 1-4); 13 (1, 3, 4); 14 (1); 15; 16
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