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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 6); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 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 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 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 16); 38 (, 1 to 16); 39 (, 1 to 16); 40 (, 1 to 8); 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; 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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11 to 21
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CLOCKSS Archive
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Preserved
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2026-02-09
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12 to 21
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 12(1-12), 1998: 13(1-12), 1999: 14(1-12), 2000: 15(1-12), 2001: 16(1-12), 2002: 17(1-12), 2003: 18(1-12), 2004: 19(1-4, 6-12), 2005: 20(1-12), 2006: 21(1-3, S 3, 4-12)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 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 : 1986: 1(1-6), 1987: 2(1-6), 1988: 3(1, S 1, 2-6), 1989: 4(1-6), 1990: 5(1-2, S 2, 3-6), 1991: 6(1, S 1, 2-6), 1992: 7(1-6), 1993: 8(1-12), 1994: 9(1, S 1, 2-3, S 3, 4-12), 1995: 10(1, S 1, 2-12), 1996: 11(1, S 1, 2-12), 1997: 12(1, S 1, 2, S 2, 3-12), 1998: 13(1-12), 1999: 14(1-2, S 2, 3-12), 2000: 15(1, S 1, 2-12), 2001: 16(1, S 1, 2-12), 2002: 17(1, S 1, 2-12), 2003: 18(1, S 1, 2-12), 2004: 19(1, S 1, 2-12), 2005: 20(1, S 1, 2-12), 2006: 21(1-3, S 3, 4, S 4, 5-12), 2007: 22(1, S 1, 2-12), 2008: 23(1-2, S 2, 3-12), 2009: 24(1, S 1, 2-12), 2010: 25(1-3, S 3, 4-12), 2011: 26(1, S 1, 2-12), 2012: 27(1-2, S 2, 3-9, 11-12), 2013: 28(1, S 1, 2-9, 11-12), 2014: 29(1-12), 2015: 30(1-12), 2016: 31(1-12), 2017: 32(1-12), 2018: 33(1-12), 2019: 34(1, S 1, 2, S 2, 3-12), 2020: 35(1, S 1, 2, S 2, 3, S 3, 4-12), 2021: 36(1, S 1, S 1, online only, 2-12), 2022: 37(1, S 1, 2, S 2, 3, S 3, 4-16), 2023: 38(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5-16), 2024: 39(1, S 1, 2, S 2, 3-16), 2025: 40(1, S 1, 2-16), 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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34
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Library of Congress
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Preserved
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2025-04-07
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31 (11); 32 (11); 33 (1, S1, 2, S2, 3 to 12); 34 (1, S1, S2, 2 to 12); 35 (1, S1, S2, 2, 3, S3, 4 to 12); 36 (1, S1, 2 to 12); 37 (S1, 1, 2, S2, S3, 3 to 16); 38 (S1, 1, 2, S2, S3, 3, 4, S4, 5 to 16); 39 (1, S1, S2, 2 to 14)
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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 (Suppl 1, 1 to 9, 11, 12); 3 (1 to 9, 11, 12); 12 (Suppl 2, 1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (Suppl 2, 1 to 9, 11, 12); 15 (Suppl 1, 1 to 9, 11, 12); 16 (Suppl 1, 1 to 9, 11, 12); 17 (Suppl 1, 1 to 9, 11, 12); 18 (Suppl 1, 1 to 9, 11, 12); 19 (Suppl 1, 1 to 9, 11, 12); 21 (Suppl 3, 1 to 9, 11, 12); 22 (Suppl 3, 1 to 9, 11, 12); 23 (Suppl 2, 1 to 9, 11, 12); 24 (Suppl 3, 1 to 9, 11, 12); 25 (Suppl 3, 1 to 9, 11, 12); 26 (Suppl 2, 1 to 9, 11, 12); 27 (Suppl 2, 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 (Suppl 2, 1 to 9, 11, 12); 34 (Suppl 2, 1 to 9, 11, 12); 35 (Suppl 1, 1 to 9, 11, 12); 36 (Suppl 1, 1 to 9, 11, 12); 37 (Suppl 3, 1 to 9, 11 to 16); 38 (Suppl 3, 1 to 9, 11 to 16); 39 (Suppl 2, 1 to 9, 11 to 16)
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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 (Suppl 1, 1 to 9, 11, 12); 3 (1 to 9, 11, 12); 12 (Suppl 2, 1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (Suppl 2, 1 to 9, 11, 12); 15 (Suppl 1, 1 to 9, 11, 12); 16 (Suppl 1, 1 to 9, 11, 12); 17 (Suppl 1, 1 to 9, 11, 12); 18 (Suppl 1, 1 to 9, 11, 12); 19 (Suppl 1, 1 to 9, 11, 12); 21 (Suppl 3, 1 to 9, 11, 12); 22 (Suppl 3, 1 to 9, 11, 12); 23 (Suppl 2, 1 to 9, 11, 12); 24 (Suppl 3, 1 to 9, 11, 12); 25 (Suppl 3, 1 to 9, 11, 12); 26 (Suppl 2, 1 to 9, 11, 12); 27 (Suppl 2, 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 (Suppl 2, 1 to 9, 11, 12); 34 (Suppl 2, 1 to 9, 11, 12); 35 (Suppl 1, 1 to 9, 11, 12); 36 (Suppl 1, 1 to 9, 11, 12); 37 (Suppl 3, 1 to 9, 11 to 16); 38 (Suppl 3, 1 to 9, 11 to 16); 39 (Suppl 2, 1 to 9, 11 to 16)
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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 (1-12); 13 (1-12); 14 (supplement-1, 1-12); 15 (1-12); 16 (1-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (1-7, 9-12); 21 (supplement-1, 1-6, 9, 10, 12); 22 (1-12); 23 (1-12); 24 (supplement-2, 1-10, 12); 25 (supplement-1, 1-12); 26 (supplement-2, 1-12); 27 (supplement-1, 1-12); 28 (supplement-2, 1-12); 29 (supplement-2, 1-12); 30 (supplement-1, 1-12); 31 (supplement-1, 1-12); 32 (supplement-1, 1-12); 33 (supplement-1, 1-12); 34 (supplement-1, 1-12)
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