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Portico
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Preserved
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2026-02-12
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Preserved : 1960: 1(1-6), 1961: 2(1-6), 1962: 3(1-6), 1963: 4(1-6), 1964: 5(1-6), 1965: 6(1-6), 1966: 7(1-6), 1967: 8(1-6), 1968: 9(1-6), 1969: 10(1-6), 1970: 11(1-6), 1971: 12(1-6), 1972: 13(1-6), 1973: 14(1-6), 1974: 15(1-4), 1975: 16(1-4), 1976: 17(1-4), 1977: 18(1-5), 1978: 19(1-12), 1979: 20(1-12), 1980: 21(1-12), 1981: 22(1-12), 1982: 23(1-12), 1983: 24(1-12), 1984: 25(1-12), 1985: 26(1-12), 1986: 27(1-12), 1987: 28(1-12), 1988: 29(1-4), 1989: 30(1-4), 1990: 31(1-4), 1991: 32(1-4), 1992: 33(1-4), 1993: 34(1-6), 1994: 35(1-6), 1995: 36(1-6), 1996: 37(1-6), 1997: 38(1-6), 1998: 39(1-6), 1999: 40(1-6), 2000: 41(1-6), 2001: 42(1-6), 2002: 43(1-6), 2003: 44(1-6), 2004: 45(1-6), 2005: 46(1-6), 2006: 47(1-6), 2007: 48(1-6), 2008: 49(1-6), 2009: 50(1-6), 2010: 51(1-6), 2011: 52(1-6), 2012: 53(1-6), 2013: 54(1-6), 2014: 55(1-6), 2015: 56(1-5), 2016: 57(1-6), 2017: 58(1-6), 2018: 59(1-6), 2019: 60(1-6), 2020: 61(1-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 61
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 36 (1 to 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 3 to 6); 53 (, 1 to 6); 54 (, 2, 3, 5, 6); 55 (, 1 to 5); 56 (, 1 to 6); 57 (, 1 to 4, 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1, 2, 4 to 6); 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
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Internet Archive
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Preserved
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2025-08-08
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1 to 55
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 51
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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 (1-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-6); 7 (1-6); 8 (1-6); 9 (1-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-5); 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-6); 35 (1-6); 36 (1-6); 37 (2-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1, 3-6); 44 (1-6); 45 (1-6); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-6); 54 (1-6); 55 (1-6); 56 (1-6); 57 (1-6); 58 (1-6); 59 (1-6); 60 (1-5)
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