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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 35 (1-2, 3, 4, 5-6); 36 (, 1 to 4, 5-6); 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 4, 5-6); 47 (, 1 to 6); 48 (, 1, 2, 3-4, 5-6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1-2, 3 to 6); 53 (, 1-2, 3 to 6); 54 (, 1, 2-3, 4 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 6); 66 (, 1 to 6); 67 (, 1 to 6); 68 (, 1 to 8); 69 (, 1 to 8); 70 (, 1 to 8); 71 (, 1 to 8); 72 (, 1 to 8); 73 (, 1 to 12); 74 (, 1 to 12); 75 (, 1 to 12); 76 (, 1 to 12); 77 (, 1 to 12); 78 (, 1 to 12); 79 (, 1 to 12); 80 (, 1 to 12); 81 (, 1 to 12); 82 (, 1 to 12); 83 (, 1 to 12); 84 (, 1 to 12); 85 (, 1 to 12); 86 (, 1 to 12); 87 (, 1 to 8); 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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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 35(1-2, C)
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CLOCKSS Archive
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Preserved
|
2026-02-09
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35 to 67
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Portico
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Preserved
|
2026-02-12
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Preserved : 1974: 36(3, 5-6, C)
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Portico
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Preserved
|
2026-02-12
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Preserved : 1975: 37(2, 6, C), 1976: 38(1-6), 1977: 39(1-6), 1978: 40(1-6), 1979: 41(1-6), 1980: 42(1-6), 1981: 43(1-6), 1982: 44(1-6), 1983: 45(1-6), 1984: 46(1-6), 1985: 47(1-6), 1986: 48(1-6), 1987: 49(1-6), 1988: 50(1-6, Index), 1989: 51(1-6, ), 1990: 52(1-6, ), 1991: 53(1-6), 1992: 54(1-6), 1993: 55(1-6), 1994: 56(1-6, Index), 1995: 57(1-6), 1996: 58(1-6), 1997: 59(1-6), 1998: 60(1-6), 1999: 61(1-6), 2000: 62(1-6), 2001: 63(1-6), 2002: 64(1-6), 2003: 65(1-6), 2004: 66(1-6), 2005: 67(1-6)
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Internet Archive
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Preserved
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2025-08-08
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1 to 34
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Internet Archive
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Preserved
|
2025-08-08
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35 to 66
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CLOCKSS Archive
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Preserved
|
2026-02-09
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1 to 88
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Portico
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Preserved
|
2026-02-12
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Preserved : 1973: 35(1-6), 1974: 36(1-6), 1975: 37(1-6), 1976: 38(1-6), 1977: 39(1-6), 1978: 40(1-6), 1979: 41(1-6), 1980: 42(1-6), 1981: 43(1-6), 1982: 44(1-6), 1983: 45(1-6), 1984: 46(1-6), 1985: 47(1-6), 1986: 48(1-6), 1987: 49(1-6), 1988: 50(1-6), 1989: 51(1-6), 1990: 52(1-6), 1991: 53(1-6), 1992: 54(1-6), 1993: 55(1-6), 1994: 56(1-6), 1995: 57(1-6), 1996: 58(1-6), 1997: 59(1-6), 1998: 60(1-6), 1999: 61(1-6), 2000: 62(1-6), 2001: 63(1-6), 2002: 64(1-6), 2003: 65(1-6), 2004: 66(1-6), 2005: 67(1-6), 2006: 68(1-8), 2007: 69(1-8), 2008: 70(1-8), 2009: 71(1-8), 2010: 72(1-8), 2011: 73(1-12), 2012: 74(1-12), 2013: 75(1-12), 2014: 76(1-12), 2015: 77(1-12), 2016: 78(1-12), 2017: 79(1-12), 2017/2018: 80(1-12), 2019: 81(1-12), 2020: 82(1-12), 2021: 83(1-12), 2022: 84(1-12), 2023: 85(1-12), 2024: 86(1-12), 2024/2025: 87(1-12), 2025/2026: 88(1-3)
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LOCKSS Archive
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In Progress
|
2026-02-09
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74, 81
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LOCKSS Archive
|
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Preserved
|
2026-02-09
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75 to 80
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Scholars Portal
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Preserved
|
2025-09-02
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|
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Preserved : 69 (7); 2007
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Library of Congress
|
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Preserved
|
2025-04-07
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78 (4); 79 (10); 80 (2 to 12); 81 (1 to 12); 82 (1 to 12); 83 (1 to 12); 84 (1 to 12); 85 (1 to 12); 86 (1 to 12); 87 (1, 2)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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|
Preserved : 6 (1 to 6); 7 (1 to 8); 8 (1 to 9, 11, 12); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 8); 69 (1 to 8); 71 (1 to 8); 72 (1 to 8); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (1 to 9, 11, 12); 79 (1 to 9, 11, 12); 81 (1 to 9, 11, 12); 82 (1 to 9, 11, 12); 83 (1 to 9, 11, 12); 84 (1 to 9, 11, 12); 85 (1 to 9, 11, 12); 86 (1 to 9, 11, 12)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 6 (1 to 6); 7 (1 to 8); 8 (1 to 9, 11, 12); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 8); 69 (1 to 8); 71 (1 to 8); 72 (1 to 8); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12); 78 (1 to 9, 11, 12); 79 (1 to 9, 11, 12); 81 (1 to 9, 11, 12); 82 (1 to 9, 11, 12); 83 (1 to 9, 11, 12); 84 (1 to 9, 11, 12); 85 (1 to 9, 11, 12); 86 (1 to 9, 11, 12)
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|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 76 (2 to 9, 11, 12)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 76 (2 to 9, 11, 12)
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|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 35; 36; 37; 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-6); 45 (1-6); 46 (1-4, 5-6); 47 (1-6); 48 (1, 2, 3-4, 5-6); 49 (1-6); 50 (1, I, 2-6); 51 (1-6); 52 (1-2, 3-6); 53 (1-2, 3-6); 54 (1, 2-3, 4-6); 55 (1-6); 56 (1-6); 57 (1-6); 58 (1-6); 59 (1-6); 60 (1-6); 61 (1-6); 62 (1-6); 63 (1-6); 64 (1-6); 65 (1-6); 66 (1-6); 67 (1-6); 68 (1-8); 69 (1-8); 70 (1-8); 71 (1-8); 72 (1-8); 73 (1-12); 74 (1, 2, 4, 6-12); 75 (1-12); 76 (1-12); 77 (1-4, 6-12); 78 (1-8, 10-12); 79 (2-12); 80 (1-11); 81 (1-10)
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