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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 58
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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, 2); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 6); 8 (, 1 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 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24-25; 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 6); 40 (, 1 to 3, 4-5, 6); 41 (, 1 to 6); 42 (, 1 to 4, 5-6); 43 (, 1, 2-3, 4, 5-6); 44 (, 1 to 4, 5-6); 45 (, 1, 2-3, 4, 5-6); 46 (, 1-2, 3, 4-5, 6); 47 (, 1-2, 3 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1, 2, 5, 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 4); 1968; 1969; 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 : 1968/1969: 1(1-4), 1969/1970/1978: 2(1-4), 1970/1971: 3(1, Index 1, 2-4), 1971: 4(1, Index 1, 2), 1972: 5(1-4, Index), 1973: 6(1, Index 1, 2-4), 1974: 7(1, Index 1, 2-6), 1975: 8(1, Index 1, 2-6), 1976: 9(1-6), 1977: 10(1, Index 1, 2-6), 1978: 11(1, Index 1, 2-6), 1979: 12(1-6), 1980: 13(1, Index 1, 2-6), 1981: 14(1-6, Index), 1982: 15(1, Index 1, 2-6), 1983: 16(1, Index 1, 2-6), 1984: 17(1, Index 1, 2-6), 1985: 18(1-6), 1986: 19(1, Index 1, 2-6), 1987: 20(1, Index 1, 2-6), 1988: 21(1, Index 1, 2-6), 1989: 22(1, Index 1, 2-6), 1990: 23(1-6), 1991/1993: 24(1, Index 1, 2-6), 1993: 24-25, 1992: 25(1-6), 1993: 26(1-6), 1994: 27(1, Index 1, 2-6), 1995: 28(1-6), 1996: 29(1-6), 1997: 30(1-6, Index), 1998: 31(1-6), 1999/2000: 32(1, Index 1, 2-6), 2000: 33(1-6), 2001: 34(1-6), 2002: 35(1-6), 2003: 36(1-6), 2004: 37(1-6), 2005: 38(1-6), 2006: 39(1-6), 2007: 40(1-6), 2008: 41(1-6), 2009: 42(1-6), 2010: 43(1-6), 2011: 44(1-6), 2012: 45(1-6), 2013: 46(1-6), 2014: 47(1-6), 2015: 48(1-6), 2016: 49(1-6), 2017: 50(1-6), 2018: 51(1-6), 2019: 52(1-6), 2020: 53(1-6), 2021: 54(1-6), 2022: 55(1-6), 2023: 56(1-6), 2024: 57(1-6), 2025: 58(1-6), 2026: 59(1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 45
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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 (1-4); 3 (I1, 1-4); 4 (I1, 1, 2); 5 (1, I, 2-4); 6 (I1, 1-4); 7 (I1, 1-6); 8 (I1, 1-6); 9 (1-6); 10 (I1, 1-6); 11 (I1, 1-6); 12 (1-6); 13 (I1, 1-6); 14 (1, I, 2-6); 15 (I1, 1-6); 16 (I1, 1-6); 17 (I1, 1-6); 18 (1-6); 19 (I1, 1-6); 20 (1-6); 21 (I1, 1-6); 22 (I1, 1-6); 23 (1-6); 24 (1-6); 24-25 (I1); 25 (1-6); 26 (1-6); 27 (I1, 1-6); 28 (1-6); 29 (1-6); 30 (1, I, 2-6); 31 (1-6); 32 (I1, 1-4, 6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-3, 4-5, 6); 41 (1-6); 42 (1-4, 5-6); 43 (1, 2-3, 4, 5-6); 44 (1-4, 5-6); 45 (1, 2-3, 4, 5-6); 46 (1-2, 4-5, 6); 47 (1-2, 3-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (2-6); 52 (1-5)
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