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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 3 (3-4, 5-6, 7-8, 9-10, 11-12); 4 (, 1-2, 3-4, 5-6, 7-8, 9, 11-12); 5 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 6 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 7 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 8 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 9 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 10 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 11 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 12 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 13 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 14 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 15 (, 1, 2, 3-6, 7-8, 9-10, 11-12); 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021
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CLOCKSS Archive
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Preserved
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2026-02-09
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3 to 15
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 3(3-12), 2009: 4(1-12), 2010: 5(1-12), 2011: 6(1-12), 2012: 7(1-12), 2013: 8(1-12), 2014: 9(1-8, 11-12), 2015: 10(1-12), 2016: 11(1-12), 2017: 12(1-12), 2018/2019: 13(1-12), 2019/2020: 14(1-12), 2020: 15(1-12)
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LOCKSS Archive
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In Progress
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2026-02-09
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7, 14
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LOCKSS Archive
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Preserved
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2026-02-09
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8 to 13
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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 : 3 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 4 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 5 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 6 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 7 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 8 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 9 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 10 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 11 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 12 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 13 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12)
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Library of Congress
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Preserved
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2025-04-07
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12 (7-8, 9-10, 11-12); 13 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 14 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 15 (1 to 3-6, 7-8, 9-10, 11-12)
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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 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 3 (1, 3, 5, 7, 9, 11); 4 (1, 3, 5, 7, 9, 11); 5 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 6 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 7 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 8 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 9 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 11 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 12 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 13 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 14 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 15 (1, 2, 3-6, 7-8, 9-1, 11-12); 16 (1 to 6); 17 (Suppl 1, 1 to 6); 18 (1 to 5); 19 (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 : 1 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 3 (1, 3, 5, 7, 9, 11); 4 (1, 3, 5, 7, 9, 11); 5 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 6 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 7 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 8 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 9 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 11 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 12 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 13 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 14 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 15 (1, 2, 3-6, 7-8, 9-1, 11-12); 16 (1 to 6); 17 (Suppl 1, 1 to 6); 18 (1 to 5); 19 (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 (3, 5, 7, 9, 11); 6 (1, 3, 5)
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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 (3, 5, 7, 9, 11); 6 (1, 3, 5)
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