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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 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1_suppl, 2 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1_suppl, 3 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1_suppl, 2 to 6); 17 (, 1 to 3 to 6); 18 (, 1_suppl, 2 to 6); 19 (, 1_suppl, 2 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 8); 31 (, 1 to 8); 32 (, 1 to 8); 33 (, 1_suppl, 2 to 8); 34 (, 1_suppl, 2 to 8); 35 (, 1_suppl, 2 to 8); 36 (, 1_suppl, 2 to 8); 37 (, 1_suppl, 2 to 8); 38 (, 1_suppl, 2 to 8); 39 (, 1, 2, 4 to 8); 40 (, 1_suppl, 2 to 5); 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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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 22, 31 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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1 to 17, 24, 40
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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(1-4), 1988: 3(1-4), 1989: 4(1-4), 1990: 5(1, 1, S, 2-4), 1991: 6(1-4), 1992: 7(1-4), 1993: 8(1, 1, S, 3-6), 1994: 9(1-6), 1995: 10(1-6), 1996: 11(1-6), 1997: 12(1-6), 1998: 13(1-6), 1999: 14(1-6), 2000: 15(1-6), 2001: 16(1-6), 2002: 17(1-6), 2003: 18(1-6), 2004: 19(1-6), 2005: 20(1-6), 2006: 21(1-6), 2007: 22(1-6), 2008: 23(1-6), 2009: 24(1-6), 2010: 25(1-6), 2011: 26(1, 1, S, s1-6), 2012: 27(1-6), 2013: 28(1-6), 2014: 29(1-6), 2015: 30(1-8), 2016: 31(1-8), 2017: 32(1-8), 2018: 33(1, 1, S, 2-8), 2019: 34(1, 1, S, 2-8), 2020: 35(1, 1, S, 2-8), 2021: 36(1, 1, S, 2-8), 2022: 37(1, 1, S, 2-8), 2023: 38(1, 1, S, 2-8), 2024: 39(1, 1, S, 2, 2, S, 3-8), 2025: 40(1, 1, S, 2-8), 2026: 41(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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18 to 23, 25 to 39
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CLOCKSS Archive
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Preserved
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2026-02-09
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23 to 30
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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, 3, 4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1, 3-6); 9 (1-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-6); 16 (1-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1, 2, 4-6); 24 (1-6); 25 (1-6); 26 (1-4); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-5, 7, 8); 31 (1-8); 32 (1-8); 33 (1-8); 34 (1-8)
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British Library
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Preserved
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2019-09-18
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Preserved : 29 (1 to 6), 30 (1 to 8), 31 (1 to 8), 32 (1 to 8), 33 (1 to 8), 68 (2; 4), 70 (2)
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