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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 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 12); 7 (, 1 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 9, 11, 12); 18 (, 2 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1-2, 3-4, 5 to 12); 25 (, 1 to 8); 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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CLOCKSS Archive
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In Progress
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2026-02-09
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 1(1-4), 2002: 2(1-6), 2003: 3(1-6), 2004: 4(1-6), 2005: 5(1-6), 2006: 6(1-9, 9, S, 10-12), 2007: 7(1-12, 12, S), 2008: 8(1-12), 2009: 9(1-12), 2010: 10(1-12), 2011: 11(1-12), 2012: 12(1-12), 2013: 13(1-6, 6, S, 7-12), 2014: 14(1-12), 2014/2015: 15(1-9)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 24
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print, just-accepted to 25
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LOCKSS Archive
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In Progress
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2026-02-09
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25
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 8(11)
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 11(1-12), 2012: 12(1-12), 2013: 13(1-12), 2014: 14(1-12), 2015: 15(1-12), 2016: 16(1-12), 2017: 17(1-12), 2018: 18(1-12), 2019: 19(1-12), 2020: 20(1-12), 2021: 21(1-12), 2022: 22(1-12), 2023: 23(1-12), 2024: 24(1-12), 2025: 25(1-12), 2026: 26(1-2)
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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 (sup1, 1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (sup1, 1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (sup1, 1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (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 : 15 (1 to 9, 11, 12); 16 (sup1, 1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 5)
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British Library
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Preserved
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2019-09-18
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Preserved : 4 (1; 5), 5 (2 to 3; 5 to 6), 6 (8), 7 (12s), 8 (1; 5; 7; 10 to 12), 9 (1 to 12), 10 (1 to 12), 11 (1 to 12), 12 (1 to 12), 13 (1 to 12; Supp 6)
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