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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 5); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 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 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 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 8); 32 (, 1 to 8); 33 (, 1 to 8); 34 (, 1 to 8); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 16); 45 (, 1 to 16); 46 (, 1 to 5, 7 to 14, 16); 47 (, 1, 2, 4 to 16); 48 (, 1 to 3, 5 to 16); 49 (, 1 to 16); 50 (, 1 to 16); 51 (, 1 to 6, 8 to 16); 52 (, 1 to 16); 53 (, 1 to 16); 54 (, 9, 16); 55; 1970; 1971; 1972; 1973; 1974; 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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Internet Archive
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Preserved
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2025-08-08
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1 to 44
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Portico
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Preserved
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2026-02-12
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Preserved : 1970/1971: 1(1-5), 1972: 2(1-4), 1973: 3(1-4), 1974: 4(1-4), 1975: 5(1-4), 1976/1977: 6(1-4), 1977: 7(1-4), 1978: 8(1-4), 1979: 9(1-4), 1980: 10(1-4), 1981: 11(1-4), 1982: 12(1-4), 1983: 13(1-4), 1984: 14(1-4), 1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1988: 18(1-4), 1989: 19(1-4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 56
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 19(9), 1990: 20(1-4), 1991: 21(1-4), 1992: 22(1-4), 1993: 23(1-4), 1994: 24(1-4), 1995: 25(1-6), 1996: 26(1-6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 35(8), 2007: 37(9-12), 2008: 38(1-12), 2009: 39(1-12), 2009/2010: 40(1-12), 2010/2011: 41(1-12), 2011/2012: 42(1-12), 2012/2013: 43(1-12), 2013/2014: 44(1-16), 2014/2015: 45(1-16), 2014/2015/2016: 46(1-16), 2016/2017: 47(1-16), 2017/2018: 48(1-16), 2018/2019: 49(1-16), 2019/2020: 50(1-16), 2019/2020/2021: 51(1-16), 2022: 52(1-16), 2023: 53(1-16), 2024: 54(1-16), 2025: 55
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Portico
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Preserved
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2026-02-12
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Preserved : 2026: 56
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Library of Congress
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Preserved
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2025-04-07
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49 (2, 5 to 16); 50 (1 to 16); 51 (1 to 11, 13 to 16); 52 (2 to 16); 53 (1 to 16); 54 (9); 55 (2025)
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