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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 16 (1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1, 2); 25 (, 1, 2/3, 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1, 2); 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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3 to 28
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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 22, 24, 33 to 42
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 20, 26, 42
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LOCKSS Archive
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Preserved
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2026-02-09
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21 to 25, 27 to 41
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CLOCKSS Archive
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Preserved
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2026-02-09
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23, 25 to 32
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 1(1-4), 1985: 2(1-4), 1986: 3(1-4), 1987: 4(1-4), 1988: 5(1-4), 1989: 6(1-4), 1990: 7(1-3), 1991: 8(1-4), 1992/1993: 9(1-4), 1993: 10(1-4), 1994: 11(1-4), 1995: 12(1-4), 1996: 13(1-4), 1997: 14(1-4), 1998: 15(1-4), 1999: 16(1-4), 2000: 17(1-4), 2001: 18(1-4), 2002: 19(1-4), 2003: 20(1-4), 2004: 21(1-4), 2005: 22(1-4), 2006: 23(1-4), 2007: 24(1-2), 2008: 25(1-4), 2009: 26(1-4), 2010: 27(1-4), 2011: 28(1-4), 2012: 29(1-4), 2013: 30(1-4), 2014: 31(1-4), 2015: 32(1-4), 2016: 33(1-4), 2017: 34(1-4), 2018: 35(1-4), 2019: 36(1-4), 2020: 37(1-4), 2021: 38(1-4), 2022: 39(1-4), 2023: 40(1-4), 2024: 41(1-4), 2025: 42(1-4)
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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 : 5 (1); 9 (3); 18 (1-4); 19 (1-4); 20 (1, 2); 26 (3, 4); 27 (1-4); 28 (1-3); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4)
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British Library
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Preserved
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2019-09-18
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Preserved : 31 (1 to 4), 32 (1 to 4), 33 (1 to 4), 34 (1 to 4), 35 (1 to 2)
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Library of Congress
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Preserved
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2025-04-07
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27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4)
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