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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 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 8); 9 (, 1 to 8); 10 (, 1 to 8); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 16
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 9(1-8), 2009: 10(1-8), 2010: 11(1-12), 2011: 12(1-12), 2012: 13(1-12), 2013: 14(1, S1, 2-12), 2014: 15(1, S1, 2-12), 2015: 16(1, S 1, 2-12)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000/2001/2008: 1(1-4), 2001/2008: 2(1-4), 2002: 3(1-4), 2003: 4(1-4), 2004: 5(1-4), 2005: 6(1-6), 2006: 7(1-6), 2007: 8(1-8), 2007/2008: 9(1-8), 2009: 10(1-8), 2010: 11(1-12), 2011: 12(1-12), 2012: 13(1-12), 2013: 14(1-5, 7-12), 2014: 15(1, S 1, 2-12), 2015: 16(1-6, 8-12), 2015/2016: 17(1-12), 2017: 18(1-12), 2018: 19(1-12), 2019: 20(1-12), 2020: 21(1-12), 2021: 22(1-12), 2022: 23(1-12), 2023: 24(1-12), 2024: 25(1-11), 2025: 26(1-12), 2026: 27(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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9 to 25
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CLOCKSS Archive
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In Progress
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2026-02-09
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9, 17, 18, 20 to 26
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CLOCKSS Archive
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Preserved
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2026-02-09
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10 to 16, 19
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LOCKSS Archive
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In Progress
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2026-02-09
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26
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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 8); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (, 1 to 4); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 8); 9 (S1, 1 to 8); 11 (1 to 9, 11, 12); 12 (, 1 to 9, 11, 12); 13 (, 1 to 9, 11, 12); 14 (, 1 to 9, 11, 12); 15 (, 1 to 9, 11, 12); 16 (S1, 1 to 9, 11, 12)
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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 8); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (, 1 to 4); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 8); 9 (S1, 1 to 8); 11 (1 to 9, 11, 12); 12 (, 1 to 9, 11, 12); 13 (, 1 to 9, 11, 12); 14 (, 1 to 9, 11, 12); 15 (, 1 to 9, 11, 12); 16 (S1, 1 to 9, 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 : ; 2 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (suppl_1, 1 to 9, 11, 12); 21 (Supplement_1, 1 to 9, 11, 12); 22 (Supplement_1, 1 to 9, 11, 12); 23 (Supplement_1, 1 to 9, 11, 12)
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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 : ; 2 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (suppl_1, 1 to 9, 11, 12); 21 (Supplement_1, 1 to 9, 11, 12); 22 (Supplement_1, 1 to 9, 11, 12); 23 (Supplement_1, 1 to 9, 11, 12)
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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 : 7 (s1, 1-6); 8 (s1, 1-8)
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