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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, 2); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1, 2); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1, 4, 5); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 2 to 6); 24 (, 1 to 5); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 2 to 6); 32 (, 1 to 4); 1994; 1995; 1996; 1997; 1998; 1999; 2000; 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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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 31
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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 to 32
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LOCKSS Archive
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In Progress
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2026-02-09
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32
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 9(1-2), 2003: 10(1-2), 2004: 11(1-2), 2005: 12(1-2), 2006: 13(1-2), 2007: 14(1-2), 2008: 15(1-3), 2009: 16 Suppl 1, 2009: 16(1-2), 2010: 17(1-4), 2011: 18(1-4), 2012: 19(1-5), 2013: 20(1-6), 2014: 21(1-6), 2015: 22(1-6), 2016: 23(1-6), 2017: 24(1-6), 2018: 25(1-6), 2019: 26(1-6), 2020: 27(1-6), 2021: 28(1-6), 2022: 29(1-6), 2023: 30(1-6), 2024: 31(1-6), 2025: 32(1-6), 2026: 33(1)
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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); 2 (1 to 6); 3 (1 to 6); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1 to 3); 16 (sup1, 1 to 3); 17 (1 to 4); 18 (1 to 4); 19 (1 to 5); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1)
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Library of Congress
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Preserved
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2025-04-07
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18 (3); 23 (3, 6); 24 (1 to 6); 25 (1 to 6); 26 (1, 3 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 5)
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