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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 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, 2, 3-4); 15 (, 1 to 4); 16 (, 1, 2, 3-4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1-2, 3-4); 22 (, 1-2, 3-4); 23 (, 1-2, 3, 4); 24 (, 1 to 4); 25 (, 1 to 5); 26 (, 1 to 5); 27 (, 1 to 5); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 4, 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 5); 37 (, 1 to 5); 38 (, 1 to 5); 39 (, 1 to 5); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1, 3, 4); 45 (, 1 to 3); 46 (, 1 to 4); 47 (, 2 to 4); 48 (, 1, 3, 4); 49 (, 3, 4); 50 (, 1); 51 (, 3, 4); 1969; 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; 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 : 1985: 47(2-4, ), 1986: 48(1, 3-4), 1987: 49(3-4), 1988: 50(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 37
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 51(3-4), 1974: 77
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Portico
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Preserved
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2026-02-12
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Preserved : 1990: 1(1-4, Index), 1991: 2(1-4, Index), 1992: 3(1, Index 1, 2-4), 1993: 4(1, Index 1, 2-4), 1994: 5(1-4), 1995: 6(1, Index 1, 2-4), 1996: 7(1, Part 1, 2-4), 1997: 8(1-4), 1998: 9(1, Index 1, 2-4), 1999: 10(1-4), 2000: 11(1-4), 2001: 12(1-4), 2002: 13(1-4), 2003: 14(1-4), 2004: 15(1-4), 2005: 16(1-4), 2006: 17(1-4), 2007: 18(1-4), 2008: 19(1-4), 2009: 20(1-4), 2011: 21(1-4), 2011: 22(1-4), 2012: 23(1-4), 2013: 24(1-4), 2014: 25(1-5), 2015: 26(1-5), 2016: 27(1-5), 2017: 28(1-6), 2018: 29(1-6), 2019: 30(1-6), 2020: 31(1-6), 2021: 32(1-6), 2022: 33(1-6), 1972/2023: 34(1-6), 1973/2024: 35(1-6, ), 2025: 36(1-6), 1975/2026: 37(1-5, ), 1976: 38(1-5, ), 1977: 39(1-5, ), 1978: 40(1-4, ), 1979: 41(1-4, ), 1980: 42(1-4, ), 1981: 43(1-4, ), 1982: 44(1, 3-4, ), 1983: 45(1-3), 1984: 46(1-4)
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Internet Archive
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Preserved
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2025-08-08
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NS 1 to NS 4
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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, I, 2-4); 2 (1, I, 2-4); 3 (I1, 1-4); 4 (I1, 1-4); 5 (1-4); 6 (I1, 1-4); 7 (P1, 1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1, 2, 3-4); 15 (1-4); 16 (1, 2, 3-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-2, 3-4); 22 (1-2, 3-4); 23 (1-2, 3, 4); 24 (2-4); 25 (1-5); 26 (1-5); 27 (1-5); 28 (1-6); 29 (1-6); 30 (1-3); 136 (2)
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