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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 3); 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 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 3); 30 (, 1 to 4); 31 (, 2, 3-4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1-2); 35 (, 1); 36 (, 1, 3); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 3); 40 (, 1, 4); 1985; 1986; 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; 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 : 1985: 1(1-3), 1986: 2(1-4), 1987: 3(1-4), 1988: 4(1-4), 1989: 5(1-4), 1990: 6(1-4), 1991: 7(1-4), 1992: 8(1-4), 1993: 9(1-4), 1994: 10(1-4), 1995: 11(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 17(1-4), 2002: 18(1, 3-4), 2003: 19(1-4), 2004: 20(1-4), 2005: 21(1-4), 2006: 22(1-4), 2007: 23(1-4), 2008: 24(1-4), 2009: 25(1-4), 2010: 26(1-4), 2011: 27(1-4), 2012/2013: 28(1-4), 2013: 29(1-4), 2014/2015: 30(1-4), 2015: 31(1-4), 2016: 32(1-4), 2017: 33(1-4), 2018: 34(1-4), 2019: 35(1-4), 2020: 36(1-2, 4), 2021: 37(1-4), 2022: 38(1-4), 2023: 39(1-4), 2024: 40(1-4), 2025: 41(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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21 to 40
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CLOCKSS Archive
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Preserved
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2026-02-09
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24 to 31, 37
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CLOCKSS Archive
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In Progress
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2026-02-09
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32 to 36, 38 to 41
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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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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 3 (1 to 4); 4 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1, 2, 3-4); 32 (1 to 4); 33 (suppl_1, 1 to 4); 34 (1-2, 3, 4); 35 (1 to 4); 36 (Supplement_1, 1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (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 : 3 (1 to 4); 4 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1, 2, 3-4); 32 (1 to 4); 33 (suppl_1, 1 to 4); 34 (1-2, 3, 4); 35 (1 to 4); 36 (Supplement_1, 1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1)
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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 : 1 (1, 2); 2 (3, 4); 3 (1-4); 4 (1-4); 5 (2, 3); 6 (2-4); 7 (2-4); 8 (1); 9 (3, 4); 10 (1-4); 11 (2, 4)
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British Library
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Preserved
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2019-09-18
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Preserved : 30 (1 to 4), 31 (1 to 2; 3-4), 32 (1; 3 to 4), 33 (1 to 2), 34 (1-2; 3)
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