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