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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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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 5); 5 (, 1 to 4); 6 (, 1 to 5); 7 (, 1 to 5); 8 (, 1 to 5); 9 (, 1 to 5); 10 (, 1 to 5); 11 (, 1 to 5); 12 (, 1 to 5); 13 (, 1 to 5); 14 (, 1 to 5); 15 (, 1 to 5); 16 (, 1 to 5); 17 (, 1 to 5); 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 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 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 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1, 2, 4 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1, 2, 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 5); 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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Portico
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Preserved
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2026-02-12
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Preserved : 1970: 1(1-4), 1971: 2(1-4), 1972: 3(1-4), 1973: 4(1-5), 1974: 5(1-4), 1975: 6(1-5), 1976: 7(1-5), 1977: 8(1-5), 1978: 9(1-5), 1979: 10(1-5), 1980: 11(1-5), 1981: 12(1-5), 1982: 13(1-5), 1983: 14(1-5), 1984: 15(1-5), 1985: 16(1-5), 1986: 17(1-5), 1987: 18(1-4), 1988: 19(1-4), 1989: 20(1-4), 1990: 21(1-4), 1991: 22(1-4), 1992: 23(1-4), 1993: 24(1-4), 1994: 25(1-4), 1995: 26(1-4), 1996: 27(1-4), 1997: 28(1-4), 1998: 29(1-4), 1999: 30(1-4), 2000: 31(1-4), 2001: 32(1-4), 2002: 33(1-4), 2003: 34(1-4), 2004: 35(1-4), 2005: 36(1-4), 2006: 37(1-4), 2007: 38(1-4), 2008: 39(1-4), 2009: 40(1-4), 2010: 41(1-4), 2011: 42(1-4), 2012: 43(1-4), 2013: 44(1-4), 2014: 45(1-6), 2015: 46(1-6), 2016: 47(1-6), 2017: 48(1-6), 2018: 49(1-6), 2019: 50(1-6), 2020: 51(1-6), 2021: 52(1-6), 2022: 53(1-6), 2023: 54(1-6), 2024: 55(1-6), 2025: 56(1-6), 2026: 57(1)
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