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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 5 (1, 2); 6 (, 1, 2); 7 (, 1 to 3); 8 (, 1, 2); 9 (, 1 to 3); 10 (, 1 to 3); 11 (, 1 to 3); 12 (, 1 to 4); 13 (, 1, 2, 3-4); 14 (, 1 to 4); 15 (, 1, 2-4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 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 3); 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 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 8); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 10); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 2, 3, 8 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1 to 12); 67 (, 1 to 12); 68 (, 1, 3 to 12); 69 (, 1 to 7); 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 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; 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 49
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 39, 41 to 70
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Portico
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Preserved
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2026-02-12
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Preserved : 1960: 4(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1966: 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 : 1968: 12(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1972: 16(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1975: 19(S 1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1976: 20(S 1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 24(1-3), 1981: 25(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 26(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 31(1), 1988: 32(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 34(4), 1992: 36(2, 4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 38(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 40(1-4), 1997/1998: 41(1-4), 1998/1999: 42(1-4), 1999/2000: 43(1-4), 2000: 44(1-4), 2001: 45(1-4), 2002: 46(1-4), 2002/2003: 47(1-4), 2003/2004: 48(1-4), 2004/2005: 49(1-6), 2005/2006: 50(1-6), 2006/2007: 51(1-6), 2007/2008: 52(1-8), 2009: 53(1-6), 2010: 54(1-6), 2011: 55(1-6), 2012: 56(1-6), 2013: 57(1-5), 2014: 58(1-8, 10), 2015: 59(2-12), 2016: 60(1-12), 2017: 61(1-12), 2018: 62(1-12), 2019: 63(1-12), 2019/2020: 64(1-12), 2021: 65(1-12), 2022: 66(1-12), 2023: 67(1-12), 2024: 68(1-11), 2025: 69(2-3, 7-12), 2026: 70(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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56, 63
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LOCKSS Archive
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Preserved
|
2026-02-09
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57 to 62
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Library of Congress
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Preserved
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2025-04-07
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62 (3 to 12); 63 (1 to 12); 64 (1 to 12); 65 (1 to 12); 66 (1 to 12); 67 (1 to 12); 68 (1 to 10)
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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 4); 5 (1 to 6); 6 (1 to 9, 11, 12); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 6); 51 (1 to 6); 52 (1 to 8); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 9); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 4 (1 to 4); 5 (1 to 6); 6 (1 to 9, 11, 12); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 6); 51 (1 to 6); 52 (1 to 8); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 9); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 26 (2); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-6); 50 (1-6); 51 (2-4, 6); 52 (1-8); 53 (1-6); 54 (1-6); 55 (1-6); 56 (1-6); 57 (1-6); 58 (1-10); 59 (1-12); 60 (1-12); 61 (supplement-1, 1-12); 62 (1-12); 63 (1-12)
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