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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 15 (1, 2-4); 16 (, 1 to 4); 17 (, 1, 2, 3-4); 18 (, 1 to 4); 19 (, 1, 2, 3-4); 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 8); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 3, 4B); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 6); 35 (, 1, 2, 4 to 6); 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 8); 43 (, 1 to 8); 44 (, 1 to 8); 45 (, 1 to 8); 46 (, 1 to 8); 47 (, 1 to 8); 48 (, 1 to 8); 49 (, 1 to 8); 50 (, 1 to 8); 51 (, 1 to 8); 52 (, 1 to 8); 53 (, 1 to 8); 54 (, 1 to 8); 55 (, 1 to 9); 56 (, 1 to 6); 57 (, 5); 58 (, 2, 5 to 9); 59 (, 1 to 9); 60 (, 1 to 9); 125 (, 1-4); 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
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CLOCKSS Archive
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Preserved
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2026-02-09
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39 to 45
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Internet Archive
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Preserved
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2025-08-08
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1 to 47
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 39(1, Index 1, 2-6), 1996: 40(1, S 1, 2-6), 1997: 41(1, Index 1, S 1, 2-6), 1998: 42(1-8), 1999: 43(1-8), 2000: 44(1-8), 2001: 45(1, S 1, 2-8)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 25(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 28(2-4), 1985: 29(1-4), 1986: 30(1-4), 1987: 31(1-3), 1988: 32(1-4), 1989: 33(1-4), 1990: 34(1-5), 1991: 35(1-5), 1992: 36(1-5), 1993: 37(1-5), 1994: 38(1-5), 1995: 39(1-5), 1996: 40(1-5), 1997: 41(1-5), 1998: 42(1-8), 1999: 43(1-8), 2000: 44(1-8), 2001: 45(1-2, 4-8), 2002: 46(1-8), 2003: 47(1-8), 2004: 48(1-8), 2005: 49(1-8), 2006: 50(1-8), 2007: 51(1-8), 2008: 52(1-8), 2009: 53(1-8), 2010: 54(1-8), 2011: 55(1-9), 2012: 56(1-9), 2012/2013: 57(1-9), 2014: 58(1-9), 2014/2015: 59(1-9), 2015/2016: 60(1-9), 2017: 61(2)
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LOCKSS Archive
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Preserved
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2026-02-09
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49 to 60
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CLOCKSS Archive
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Preserved
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2026-02-09
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52 to 59
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CLOCKSS Archive
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In Progress
|
2026-02-09
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60
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Scholars Portal
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Preserved
|
2025-09-02
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Preserved : 28 (2); 35 (, 3); 1984; 1991
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : ; 5 (1 to 8); 6 (1 to 9); 25 (2); 51 (1 to 8); 52 (1 to 8); 53 (1 to 8); 54 (1 to 8); 55 (1 to 9); 56 (1 to 9); 57 (1 to 9); 58 (1 to 9); 59 (suppl_1, 1 to 9); 61 (2)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : ; 5 (1 to 8); 6 (1 to 9); 25 (2); 51 (1 to 8); 52 (1 to 8); 53 (1 to 8); 54 (1 to 8); 55 (1 to 9); 56 (1 to 9); 57 (1 to 9); 58 (1 to 9); 59 (suppl_1, 1 to 9); 61 (2)
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British Library
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Preserved
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2019-09-18
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Preserved : 46 (1 to 8; S1), 47 (1 to 8), 48 (1 to 8), 49 (1 to 8), 50 (1 to 8), 51 (1 to 8), 52 (1 to 8), 53 (1 to 8), 54 (1 to 8), 55 (1 to 9), 56 (1 to 6), 57 (5), 58 (1 to 9), 59 (1 to 9; S1), 60 (1 to 8), 63 (3)
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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 : 36 (4); 39 (I1, 1-6); 40 (S1, 1-6); 41 (I1, 1-6); 42 (1-8); 43 (1-8); 44 (1-8); 45 (S1, 1-8)
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