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Portico
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Preserved
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2026-02-12
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Preserved : 1975: 1(1-3), 1976: 2(1-3), 1977: 3(1-3), 1978: 4(1-3), 1979: 5(1-3), 1980: 6(1-3), 1981: 7(1-3), 1982: 8(1, Index 1, 2-3), 1983: 9(1-3), 1984: 10(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 11(1-3), 1986: 12(1, Index 1, 2-3), 1987: 13(1, Index 1, 2-3), 1988: 14(1-3), 1989: 15(1-3), 1990/1992: 16(1, Index 1, 2-3), 1991/1992: 17(1, Index 1, 2-3), 1992: 18(1-3), 1993/1994: 19(1, Index 1, 2-4), 1994: 20(1-4), 1995: 21(1-4), 1996: 22(1, Index 1, 2-4), 1997: 23(1, Index 1, 2-4), 1998: 24(1-4), 1999: 25(1-4), 2000: 26(1-4), 2001: 27(1-4), 2002: 28(1-4), 2002/2003: 29(1-4), 2004: 30(1-4), 2005: 31(1-4), 2006: 32(1-4), 2007: 33(1-4), 2008: 34(1-4), 2009: 35(1-4), 2010: 36(1-4), 2011: 37(1-4), 2012: 38(1-4), 2013: 39(1-4), 2014: 40(C), 2014: 41(C), 2014: 42(C), 2014: 43(C), 2015: 44(C), 2015: 45, 2015: 46(C), 2015: 47(C), 2016: 48, 2016: 49(C), 2016: 50, 2016: 51, 2017: 52, 2017: 53, 2017: 54, 2017: 55, 2018: 56, 2018: 57, 2018: 58, 2018: 59, 2019: 60, 2019: 61, 2019: 62, 2019: 63, 2020: 64, 2020: 65, 2020: 66, 2020: 67, 2021: 68, 2021: 69, 2021: 70, 2021: 71, 2022: 72, 2022: 73, 2022: 74, 2022: 75, 2023: 76, 2023: 77, 2023: 78, 2023: 79, 2024: 80, 2024: 81, 2024: 82, 2024: 83, 2025: 84, 2025: 85, 2025: 86, 2025: 87
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 87
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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 3); 2 (, 1 to 3); 3 (, 1 to 3); 4 (, 1 to 3); 5 (, 1 to 3); 6 (, 1 to 3); 7 (, 1 to 3); 8 (, 1 to 3); 9 (, 1 to 3); 10 (, 1, 2); 11 (, 1 to 3); 12 (, 1 to 3); 13 (, 1 to 3); 14 (, 1 to 3); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1, 2-3); 18 (, 1 to 3); 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, 2-3, 4); 32 (, 1 to 4); 33 (, 1, 2, 3-4); 34 (, 1 to 4); 35 (, 1, 2-3, 4); 36 (, 1-2, 3, 4); 37 (, 1, 2-3, 4); 38 (, 1, 2, 3-4); 39 (, 1 to 4); 40; 41; 42; 43; 44; 46; 47; 48; 49; 50; 51; 53; 54; 55; 56; 57; 58; 59; 60; 61; 62; 63; 64; 66; 67; 68; 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 81; 82; 83; 84; 85; 86; 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 37
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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 (1-3); 2 (1-3); 3 (1-3); 4 (1-3); 5 (1-3); 6 (1-3); 7 (1-3); 8 (I1, 1-3); 9 (1-3); 10 (1, 2); 11 (1-3); 12 (I1, 1-3); 13 (I1, 1-3); 14 (1-3); 15 (1-3); 16 (1-3); 17 (I1, 1, 2-3); 18 (1-3); 19 (1-4); 20 (1-4); 21 (1-4); 22 (I1, 1-4); 23 (I1, 1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1, 2-3, 4); 32 (1-4); 33 (1, 2, 3-4); 34 (1-4); 35 (1, 2-3, 4); 36 (1-2, 3, 4); 37 (1, 2-3, 4); 38 (1, 2, 3-4); 39 (1-4); 40 (C); 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54; 55; 56; 57; 58; 59; 60; 61; 62
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