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