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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); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1, 2); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1 to 3); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 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 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 7); 40 (, 1 to 7); 41 (, 1 to 7); 42 (, 1 to 7); 43 (, 1 to 8); 44 (, 1 to 8); 45 (, 1 to 8); 46 (, 1 to 8); 47 (, 1 to 8); 48 (, 1 to 8); 49 (, 1 to 8); 50 (, 1 to 8); 51 (, 1 to 6); 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 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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CLOCKSS Archive
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Preserved
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2026-02-09
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19 to 30
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Internet Archive
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Preserved
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2025-08-08
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1 to 40
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 19(1-4), 1994: 20(1-4), 1995: 21(1-6), 1996: 22(1-6), 1997: 23(1-6), 1998: 24(1-6), 1999: 25(1-6), 2000: 26(1-6), 2001: 27(1-6), 2002: 28(1-6), 2003: 29(1-6), 2004: 30(1-6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1975: 1(1), 1976: 2(1-2), 1977: 3(1-2), 1978: 4(1-2), 1979: 5(1-2), 1980: 6(1-2), 1981: 7(1-2), 1982: 8(1-2), 1983: 9(1-2), 1984: 10(1-3), 1985: 11(1-3), 1986: 12(1-4), 1987: 13(1-4), 1988: 14(1-4), 1989: 15(1-4), 1990: 16(1-4), 1991: 17(1-4), 1992: 18(1-4), 1993: 19(1-4), 1994: 20(1-4), 1995: 21(1-6), 1996: 22(1-6), 1997: 23(1-6), 1998: 24(1-6), 1999: 25(1-6), 2000: 26(1-6), 2001: 27(1-6), 2002: 28(1-6), 2003: 29(1-6), 2004: 30(1-6), 2005: 31(1-6), 2006: 32(1-6), 2007: 33(1-6), 2008: 34(1-6), 2009: 35(1-6), 2010: 36(1-6), 2011: 37(1-6), 2012: 38(1-6), 2013: 39(1-7), 2014: 40(1-7), 2015: 41(1-7), 2016: 42(1-7), 2017: 43(1-8), 2018: 44(1-8), 2019: 45(1-8), 2020: 46(1-8), 2021: 47(1)
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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 31, 33, 42 to 51
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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 26, 28, 51
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LOCKSS Archive
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Preserved
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2026-02-09
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27, 29 to 50
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CLOCKSS Archive
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Preserved
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2026-02-09
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32, 34 to 41
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Portico
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Preserved
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2026-02-12
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Preserved : 2021: 47(5-8), 2022: 48(1-8), 2023: 49(1-8), 2024: 50(1-8), 2025: 51(1-8), 2026: 52(1-2)
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Library of Congress
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Preserved
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2025-04-07
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36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 7); 40 (1 to 7); 41 (1 to 7); 42 (1 to 7); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 50 (1 to 8)
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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); 2 (2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 10 (1, 2); 11 (1-3); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-5); 35 (1-6); 36 (1-6); 37 (1-4); 38 (1, 3-6); 39 (1-7); 40 (1-7); 41 (1-5); 42 (1-7); 43 (1-8); 44 (1-8); 45 (1-4, 7, 8)
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British Library
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Preserved
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2019-09-18
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Preserved : 40 (1 to 7), 41 (1 to 7), 42 (1 to 7), 43 (1 to 8), 44 (1 to 8)
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