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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 (, 1-4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1-4); 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, 2, 3-4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 9); 31 (, 1 to 9); 32 (, 1 to 9); 33 (, 1 to 9); 34 (, 1 to 9); 35 (, 1 to 9); 36 (, 1 to 7, 9); 37 (, 1, 2); 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; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 1(1-4), 1987: 2(1-4), 1988: 3(1-4), 1989: 4(1, S 1, 2-4), 1990: 5(1-4), 1991: 6(1-4), 1992: 7(1-4), 1993: 8(1-4), 1994: 9(1-4), 1995: 10(1-4), 1996: 11(1-4), 1997: 12(1-4), 1998: 13(4), 1999: 14(1-2), 2000: 15(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 26, 28 to 33
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 41
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 17(1-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2003/2004: 18(3-4)
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Portico
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Preserved
|
2026-02-12
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Preserved : 2005: 19(4), 2006: 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: 22(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 23(3), 2009: 24(2-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 26(S 1), 2012: 27(4), 2013: 28(1-6), 2014: 29(1-6), 2015: 30(3-9), 2016: 31(1-9), 2017: 32(1-9), 2018: 33(1-9), 2018/2019: 34(1-9), 2019/2020: 35(1-9), 2021: 36(1-9), 2022: 37(1, S 1, 2-9), 2023: 38(1), 2024: 39(1), 2025: 40(1), 2026: 41(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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27, 34
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 37 (3 to 9); 38 (, 1); 39 (, 1); 40 (, 1); 2022; 2023; 2024; 2025
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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 3); 3 (1 to 9); 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 (Suppl 2, 1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (Suppl 1, 1 to 4); 24 (Suppl 1, 1 to 6); 25 (Suppl 1, 1 to 6); 26 (Suppl 1, 1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 9); 32 (1 to 9); 33 (1 to 9); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (Suppl 1, 1 to 9); 38 (1); 39
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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 3); 3 (1 to 9); 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 (Suppl 2, 1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (Suppl 1, 1 to 4); 24 (Suppl 1, 1 to 6); 25 (Suppl 1, 1 to 6); 26 (Suppl 1, 1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 9); 32 (1 to 9); 33 (1 to 9); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (Suppl 1, 1 to 9); 38 (1); 39
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 13 (2-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (2-4); 19 (1-4); 20 (1, 2, 3-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (supplement-1, 1-6); 25 (1-6); 26 (supplement-1, 1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-9); 31 (1-9); 32 (1-9); 33 (1-9); 34 (1-8)
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