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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 9 (6); 18 (, 5); 20 (, 1 to 6); 21 (, 1, 3, 4, 6); 22 (, 1 to 6); 23 (, 1 to 6); 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 3, 4pt1, 5pt1, 6pt1); 35 (, 1 to 6); 1986; 1995; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012
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Internet Archive
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Preserved
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2025-08-08
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10 to 17
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Portico
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Preserved
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2026-02-12
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Preserved : 1978: 1(1-6, s1-s2a), 1979: 2(1-6), 1980: 3(1-6), 1981: 4(1-6, s4), 1982: 5(1-6), 1983: 6(1-6), 1984: 7(1-6), 1985: 8(1-6), 1986: 9(1-6), 1987: 10(1-6), 1988: 11(1-6), 1989: 12(1-6), 1990: 13(1-6), 1991: 14(1-6), 1992: 15(1-6), 1993: 16(1-6), 1994: 17(1-6), 1995: 18(1-6), 1996: 19(1-6), 1997/1998: 20(1-6), 1998: 21(1-6), 1999: 22(1), 2000: 23(1), 2001: 24(1), 2002: 25(1), 2003: 26(1), 2004: 27(1), 2005: 28(1), 2006: 29(1), 2007: 30(1), 2008: 31(1), 2009: 32(1), 2010: 33(1), 2011: 34(1-3, 4pt1, 4pt2, 5pt1, 5pt2, 6pt1, 6pt2), 2012: 35(1-6)
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CLOCKSS Archive
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Preserved
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2026-02-09
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9, 14 to 35
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2 (1 to 6); 3 (1 to 6); 21 (1 to 6); 22 (S1, 1 to 6); 23 (S2, 1 to 6); 24 (s1, 1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (s1, 1 to 6); 29 (1 to 6); 31 (s1, 1 to 6); 32 (1 to 6); 33 (s1, 1 to 6); 34 (1 to 3, 4pt1, 5pt2, 6pt2); 35 (1 to 6)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1 to 6); 3 (1 to 6); 21 (1 to 6); 22 (S1, 1 to 6); 23 (S2, 1 to 6); 24 (s1, 1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (s1, 1 to 6); 29 (1 to 6); 31 (s1, 1 to 6); 32 (1 to 6); 33 (s1, 1 to 6); 34 (1 to 3, 4pt2, 5pt2, 6pt1); 35 (1 to 6)
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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 : 29 (1-6); 30 (1-6)
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