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