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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, 2, 3-4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 3, 4); 7 (, 1_suppl, 2 to 4); 8 (, 1 to 4); 9 (, 1 to 3, 4); 10 (, 1_suppl, 2 to 4); 11 (, 1, 2, 3_suppl, 4S); 12 (, 1, 2, 3SB, 4_suppl); 13 (, 1, 2 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1, 2 to 4); 18 (, 1 to 4); 19 (, 1 to 5, 6_suppl); 20 (, 1 to 3 to 5, 6); 21 (, 1 to 8); 22 (, 1 to 3 to 8); 23 (, 1 to 8); 24 (, 1 to 3 to 12); 25 (, 1 to 7 to 9 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_suppl, 2 to 12); 36 (, 1 to 3 to 12); 37 (, 1 to 3 to 12); 38 (, 1, 2 to 4 to 12); 39 (, 1 to 6); 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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15 to 20
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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 21, 30 to 39
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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 16, 39
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 1(1-4), 1988: 2(1-4), 1989: 3(1-4), 1990: 4(1-4), 1991: 5(1-4), 1992: 6(1-2, 2, S, 3-4), 1993: 7(1, 1, S, 2-4), 1994: 8(1-4), 1995: 9(1-2, 2, S, 3-4), 1996: 10(1, 1, S, 2-4), 1997: 11(1-3, 3, S, 4), 1998: 12(1-3, 3, S, 4, 4, S), 1999: 13(1-3, 3, S, 4, 4, S), 2000: 14(1-4), 2001: 15(1-4), 2002: 16(1-4), 2003: 17(1-3, 3, S, 4), 2004: 18(1-4), 2005: 19(1-5, 5, S, 6, 6, S, s6), 2006: 20(1-6), 2007: 21(1-8), 2008: 22(1-7, 7, S, 8), 2009: 23(1-8), 2010: 24(1-12), 2011: 25(1-8, 8, S, 9-12), 2012: 26(1-5, 5, S, s5-12), 2013: 27(1-4, 4, S, 5-12), 2014: 28(1-12), 2015: 29(1-12), 2016: 30(1-12), 2017: 31(1-12), 2018: 32(1-12, 12, S), 2019: 33(1-12, 12, S), 2020: 34(1-12), 2021: 35(1, S, 2, 6-12), 2022: 36(1-2, 2, S, 3-12), 2023: 37(1-2, 2, S, 3-12), 2024: 38(1-2, 2, S, 3, 3, S, 4-12), 2025: 39(1-2, 2, S, 3-12)
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LOCKSS Archive
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Preserved
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2026-02-09
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17 to 38
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CLOCKSS Archive
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Preserved
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2026-02-09
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22 to 29
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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, 2, 3-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-3, 4S); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-6); 20 (1-6); 21 (1-8); 22 (1-4, 6-8); 23 (1-8); 24 (1-12); 25 (1-8, 11, 12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1-9, 11, 12); 30 (1-6, 8-12); 31 (1-12); 32 (1-12); 33 (1-8, 10-12)
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British Library
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Preserved
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2019-09-18
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Preserved : 28 (1 to 12), 29 (1 to 12), 30 (1 to 12), 31 (1 to 12), 32 (1 to 10)
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