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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 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 2 to 7, 9 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1); 40 (, 1); 1987; 1988; 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
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 15(S 2, S 5, S 6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 19(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 21(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 23(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 2009: 25(1, 11-12), 2010: 26(1-12), 2011: 27(1, S 1, 2-12), 2012: 28(1, S 1, S 2, 3-12), 2013: 29(1, S 1, 2-12), 2014: 30(1, S 1, 2-12), 2014/2015: 31(1-6)
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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 40
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 40
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LOCKSS Archive
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In Progress
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2026-02-09
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41
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Portico
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Preserved
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2026-02-12
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Preserved : 1988/1998: 2(1-4), 1989: 3(1-4), 1990: 4(1-4), 1991: 5(1-4), 1992: 6(1-4), 1993: 7(1-4), 1994: 8(1-4), 1995: 9(1-4), 1996: 10(1-6), 1997: 11(1-6), 1998: 12(1-6), 1999: 13(1-6), 2000: 14(1-6), 2001: 15(1-6), 2002: 16(1-6), 2003: 17(1-6), 2004: 18(1-6), 2004: 19(1-6), 2005: 20(1-6), 2005: 21(1-6), 2006: 22(1-12), 2007: 23(1-12), 2008: 24(1-5, 7-12), 2009: 25(1-12), 2010: 26(1-12), 2011: 27(1-12), 2012: 28(1-12), 2013: 29(1-12), 2014: 30(1-12), 2015: 31(1-12), 2016: 32(1-12), 2017: 33(1-12), 2018: 34(1-12), 2019: 35(1-12), 2020: 36(1-12), 2021: 37(1-12), 2022: 38(1-12), 2023: 39(1), 2024: 40(1), 2025: 41(1), 2026: 42(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 : 2 (2 to 6); 3 (sup1, 1 to 9, 11, 12); 4 (1); 11 (sup1, 1 to 6); 12 (1 to 6); 13 (sup4, 1 to 6); 14 (1 to 6); 15 (sup2, 1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (sup1, 1 to 6); 22 (sup1, 1 to 9, 11, 12); 23 (sup1, 1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (sup1, 1 to 9, 11, 12); 28 (sup1, 1 to 9, 11, 12); 29 (sup1, 1 to 9, 11, 12); 31 (sup1, 1 to 9, 11, 12); 32 (sup1, 1 to 9, 11, 12); 33 (sup1, 1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (sup1, 1 to 9, 11, 12); 36 (S1, 1 to 9, 11, 12); 37 (S1, 1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1)
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