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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, 2-3, 4); 4 (, 1 to 4); 5 (, 1, 2, 3-4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1, 2-3, 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 3); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1, 2-3, 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1, 2, 3-4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1, 2, 3-4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1, 2, 3-4); 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 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 5); 40 (, 1 to 5); 41 (, 1 to 5); 42 (, 1 to 3, 5); 43 (, 1 to 5); 44 (, 1 to 5); 45 (, 1 to 5); 46 (, 1 to 3); 47 (, 3 to 5); 48 (, 1 to 4); 49 (, 1 to 5); 50 (, 1 to 4); 51 (, 1, 4); 1973; 1974; 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
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 22(1-4), 1996: 23(1-4), 1997: 24(1-2), 1998: 25(1-4), 1999: 26(1-4), 2000: 27(1-4), 2001: 28(1-4), 2002: 29(1-4), 2003: 30(1-4), 2004: 31(1-4), 2005: 32(1-4), 2006: 33(1-4), 2007: 34(1-4), 2008: 35(1-4), 2009: 36(1-4), 2009/2010: 37(1-4), 2010/2011: 38(1-4), 2011/2012: 39(1-5), 2012/2013: 40(1-5), 2013/2014: 41(1-5), 2014/2015: 42(1-5), 2016: 43(1-5), 2017: 44(1-5), 2018: 45(1-5), 2019: 46(1-5), 2020: 47(1-5), 2021: 48(1-5), 2022: 49(1-5), 2023: 50(1-5), 2024: 51(1-5), 2025: 52(1-5)
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LOCKSS Archive
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Preserved
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2026-02-09
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32 to 35, 37 to 51
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CLOCKSS Archive
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Preserved
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2026-02-09
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35 to 42, 44
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CLOCKSS Archive
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In Progress
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2026-02-09
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43, 45 to 52
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LOCKSS Archive
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In Progress
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2026-02-09
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52
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 44 (5); 2017
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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 : 4 (1 to 5); 5 (1 to 5); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 5); 49 (1 to 5); 51 (1 to 5); 52 (1, 2)
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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 : 4 (1 to 5); 5 (1 to 5); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 5); 49 (1 to 5); 51 (1 to 5); 52 (1, 2)
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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 : 4 (2, 4)
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British Library
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Preserved
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2019-09-18
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Preserved : 41 (1 to 5), 42 (1 to 3; 5), 43 (1 to 5), 44 (1 to 2), 45 (1 to 5)
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