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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 6); 3 (, 1 to 6); 4 (, 1 to 12); 7 (, 1 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 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 7, 10, 11); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 6, 8, 10 to 12); 34 (, 1 to 4, 6, 7, 9 to 11); 35 (, 1 to 12); 36 (, 1, 3, 4, 6, 8 to 12); 37 (, 1 to 12); 38 (, 1 to 8, 11); 39 (, 8); 40; 1986; 1987; 1988; 1989; 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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Internet Archive
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Preserved
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2025-08-08
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4 to 18
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Portico
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Preserved
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2026-02-12
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Preserved : 1986/1987: 1(1-4), 1987: 2(1-6), 1988: 3(1-6), 1989: 4(1-12), 1990: 5(1-12), 1991: 6(1-12), 1992: 7(1-12), 1993: 8(1-12), 1994: 9(1-12), 1995: 10(1-12), 1996: 11(1-12), 1997: 12(9), 1998: 13(1-4, 6, 10, 12), 1999: 14(3-s_4, 6-12), 2000: 15(1-12), 2001: 16(1-5, 7-12), 2002: 17(1-12), 2003: 18(1-12), 2004: 19(2, 4-8, 10-12), 2005: 20(1-12), 2005/2006: 21(1-12), 2006/2007: 22(1-12), 2007/2008: 23(1-12), 2008/2009: 24(1-12), 2009/2010: 25(1-12), 2010/2011: 26(1-12), 2011/2012: 27(1-12), 2012/2013: 28(1-12), 2013/2014: 29(1-12), 2014/2015: 30(1-12), 2015/2016: 31(1-12), 2017: 32(1-12), 2018: 33(1-12), 2019: 34(1-12), 2020: 35(1-12), 2021: 36(1-12), 2022: 37(1-12), 2023: 38(1-12), 2024: 39(1-12), 2025: 40(1-12), 2026: 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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20 to 39
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CLOCKSS Archive
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Preserved
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2026-02-09
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23 to 30
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CLOCKSS Archive
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In Progress
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2026-02-09
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23, 31 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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40
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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 9, 11, 12); 4 (Supplement_1, 1 to 9); 6 (2); 12 (12); 17 (suppl_9); 21 (1 to 9, 11, 12); 22 (suppl_1, 1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (Suppl_1, 1 to 9, 11, 12); 28 (suppl_1, 1 to 9, 11, 12); 29 (suppl_1, 1 to 9, 11, 12); 31 (suppl_1, 1 to 9, 11, 12); 32 (suppl_1, 1 to 9, 11, 12); 33 (suppl_3, 1 to 9, 11, 12); 34 (Supplement_2, 1 to 9, 11, 12); 35 (Supplement_1, 1 to 9, 11, 12); 36 (Supplement_1, 1 to 9, 11, 12); 37 (Supplement_1, 1 to 9, 11, 12); 38 (Supplement_1, 1 to 9, 11, 12); 39 (Supplement_2, 1 to 9, 12)
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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 9, 11, 12); 4 (Supplement_1, 1 to 9, 11); 6 (2); 12 (12); 17 (suppl_9); 21 (1 to 9, 11, 12); 22 (suppl_1, 1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (Suppl_1, 1 to 9, 11, 12); 28 (suppl_1, 1 to 9, 11, 12); 29 (suppl_1, 1 to 9, 11, 12); 31 (suppl_1, 1 to 9, 11, 12); 32 (suppl_1, 1 to 9, 11, 12); 33 (suppl_2, 1 to 9, 11, 12); 34 (Supplement_2, 1 to 9, 11, 12); 35 (Supplement_1, 1 to 9, 11, 12); 36 (Supplement_1, 1 to 9, 11, 12); 37 (Supplement_2, 1 to 9, 11, 12); 38 (Supplement_1, 1 to 9, 11, 12); 39 (Supplement_2, 1 to 9, 12)
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British Library
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In Progress
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2019-09-18
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In Progress : 30 (S3)
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British Library
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Preserved
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2019-09-18
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Preserved : 11 (7), 13 (12), 29 (1 to 9; 11 to 12; S3 to S4), 30 (1 to 4; 6; 8 to 10; S1 to S2; S4), 31 (2 to 3; 5 to 11; S1 to S2), 32 (2 to 5; 7 to 8; S1 to S3), 33 (5 to 8; 10 to 11; S1; S3), 34 (1 to 2)
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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 (2-4); 2 (1-6); 3 (1-6); 4 (1, 3-12); 7 (1-12); 8 (1-12); 9 (1-12); 10 (1-12)
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