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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 4 (1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1-2, 3 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 3, 4-5, 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 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 6); 31 (, 1 to 3, 6, 10 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 9, 11, 12); 35 (, 1, 2, 4 to 12); 36 (, 1 to 12); 37 (, 2 to 9, 10-11, 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 2 to 16); 41 (, 1 to 16); 42 (, 1 to 16); 43 (, 1 to 4, 6 to 16); 44 (, 1 to 13); 1985; 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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22 to 25
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 43
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 44
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LOCKSS Archive
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In Progress
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2026-02-09
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44
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 10(1-6), 1992: 11(1-6), 1993: 12(1-6), 1994: 13(3-6), 1995: 14(1-6), 1996: 15(1-6), 1997: 16(1-6), 1998: 17(1-6), 1999: 18(1-6), 2000: 19(1-6), 2001: 20(1-6), 2002: 21(1-6), 2003: 22(1-6), 2004: 23(1-6), 2005: 24(1-6), 2006: 25(1-6), 2007: 26(1-6), 2007/2008: 27(1-6), 2009: 28(1-6), 2010: 29(1-6), 2011: 30(1-6), 2012: 31(1-12), 2013: 32(1-12), 2014: 33(1-12), 2015: 34(1-12), 2016: 35(1-12), 2017: 36(1-12), 2018: 37(1-12), 2019: 38(1-12), 2020: 39(1-12), 2021: 40(1-16), 2022: 41(1-16), 2023: 42(1-16), 2024: 43(1-16), 2025: 44(1-20), 2026: 45(1-3)
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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 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-6); 9 (1-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-2, 3-6); 14 (1-6); 15 (1-6); 16 (1-3, 4-5, 6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-6); 27 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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29 (1 to 6); 30 (1 to 6); 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 10-11, 12); 38 (1 to 12); 39 (1, 3 to 12); 40 (1 to 16); 41 (1 to 16); 42 (1 to 16); 43 (1 to 14)
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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 (2 to 6); 3 (1 to 6); 4 (1, 3 to 9, 11 to 16); 16 (1 to 3, 4-5, 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 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, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11 to 16); 42 (1 to 5, 7 to 9, 11 to 15); 43 (1 to 9, 11 to 16); 44 (1 to 4, 6)
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