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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 9); 8 (, 1 to 9); 9 (, 1 to 9); 10 (, 1 to 12); 11 (, 1 to 5, 6-7, 8 to 12); 12 (, 1-2, 3 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 14); 16 (, 1 to 5, 6-7, 8 to 10, 11-12, 13, 14); 17 (, 1 to 3, 4-5, 6, 7-8, 9 to 14); 18 (, 1 to 14); 19 (, 1 to 5, 6-7, 8 to 14); 20 (, 1 to 14); 21 (, 1 to 14); 22 (, 1 to 14); 23 (, 1 to 14); 24 (, 1 to 14); 25 (, 1 to 14); 26 (, 1 to 14); 27 (, 1 to 14); 28 (, 1 to 14); 29 (, 1 to 10, 12-14); 30 (, 1 to 3, 4-5, 6, 7-8, 9-10, 11-12, 13-14); 31 (, 1 to 8, 9-10, 11-12, 13-14); 32 (, 1 to 8, 9-10, 11-12, 13-14); 33 (, 1 to 5, 6-8, 9-14); 34 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14); 35 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14); 36 (, 1, 3 to 6, 7-8, 9-10); 37 (, 1 to 4); 1989; 1990; 1991; 1992; 1993; 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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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 7(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 16(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 19(1-2), 2008: 20(3, 10-12)
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Portico
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Preserved
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2026-02-12
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Preserved : 2009: 21(S 3, 13-14), 2010: 22(1, S 1, 2, S 2, 3-14), 2011: 23(1, S 1, 2, S 2, 3, S 3, 4-14), 2012: 24(1, S 1, 2-14), 2013: 25(1-2, S 2, 3-14), 2014: 26(1-14), 2014/2015: 27(1-8)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 36
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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 37
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LOCKSS Archive
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In Progress
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2026-02-09
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37
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 6(sup1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 9(1-9), 1998: 10(1-12), 1999: 11(1-12), 2000: 12(1-2, sup1-12), 2001: 13(1-12), 2002: 14(1-12), 2003: 15(1-12), 2004: 16(1-14), 2005: 17(1-14), 2006: 18(1-14), 2007: 19(1-14), 2008: 20(1-14), 2009: 21(1-14), 2010: 22(1-14), 2011: 23(1-14), 2012: 24(1-14), 2013: 25(1-14), 2014: 26(1-14), 2015: 27(1-14), 2016: 28(1-14), 2017: 29(1-14), 2018: 30(1-14), 2019: 31(1-14), 2020: 32(1-14), 2021: 33(1-14), 2022: 34(1-14), 2023: 35(1-14), 2024: 36(1-10), 2025: 37(1-10), 2026: 38(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 to 9, 11, 12); 2 (1 to 9, 11 to 14); 3 (1 to 3, 4-5, 6, 7-8, 9-1, 11-12, 13-14); 9 (1 to 9); 11 (1 to 5, 6-7, 8, 9, 11, 12); 12 (sup1, 1-2, 3 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11 to 14); 16 (sup1, 1 to 5, 6-7, 8, 9, 11-12, 13, 14); 17 (1 to 3, 4-5, 6, 7-8, 9, 11 to 14); 18 (1 to 9, 11 to 14); 19 (sup1, 1 to 5, 6-7, 8, 9, 11 to 14); 21 (sup1, 1 to 9, 11 to 14); 22 (sup1, 1 to 9, 11 to 14); 23 (sup1, 1 to 9, 11 to 14); 24 (sup1, 1 to 9, 11 to 14); 25 (sup2, 1 to 9, 11 to 14); 26 (1 to 9, 11 to 14); 27 (sup1, 1 to 9, 11 to 14); 28 (1 to 9, 11 to 14); 29 (1 to 9, 11, 12-14); 31 (1 to 8, 9-1, 11-12, 13-14); 32 (1 to 8, 9-1, 11-12, 13-14); 33 (1 to 5, 6-8, 9-14); 34 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12, 13-14); 35 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12, 13-14); 36 (1 to 6, 7-8, 9-1); 37 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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22 (sup1, sup2, 1 to 14); 23 (sup2, sup1, sup3, 1 to 14); 24 (sup1, 1 to 14); 25 (sup2, 1 to 14); 26 (1 to 14); 27 (sup1, 1 to 14); 28 (1 to 14); 29 (1 to 12-14); 30 (1 to 4-5, 6, 7-8, 9-10, 11-12, 13-14); 31 (1 to 9-10, 11-12, 13-14); 32 (1 to 9-10, 11-12, 13-14); 33 (1 to 6-8, 9-14); 34 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14); 35 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14); 36 (1 to 6)
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