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Portico
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Preserved
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2026-02-12
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Preserved : 1963: 4(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1964: 5(1-2), 1965: 6(1), 1966: 7(1-2), 1967: 8(1, 3-4), 1968: 9(1-4), 1969: 10(1-4), 1970: 11(1-4), 1971: 12(1-4), 1972: 13(1-4), 1973: 14(1-4), 1974: 15(1-4), 1975: 16(1-3), 1976: 17(1-4), 1977: 18(3-4), 1978: 19(1-2, 4), 1979: 20(1, 3), 1980: 21(1-4), 1981: 22(1, 4), 1982: 23(1-3)
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|
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Portico
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Preserved
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2026-02-12
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|
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Preserved : 1983: 24(1), 1983: 25(1), 1985: 26(1), 1986: 27(1), 1987: 28(1)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 29 (1); 30 (, 1); 31 (, 1); 32 (, 1); 33 (, 1); 34 (, 1); 35 (, 1); 36 (, 1); 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 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 2 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 9); 66 (, 1 to 5); 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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29 to 30
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CLOCKSS Archive
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Preserved
|
2026-02-09
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1 to 67
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Portico
|
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Preserved
|
2026-02-12
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Preserved : 1988: 29(1), 1989: 30(1), 1990: 31(1), 1991: 32(1), 1992: 33(1), 1993: 34(1), 1994: 35(1), 1995: 36(1), 1996: 37(1-4), 1997: 38(1-4), 1998: 39(1-4), 1999: 40(1-4), 2000: 41(1-4), 2001: 42(1-4), 2002: 43(1-4), 2003: 44(1-4), 2004: 45(1-4), 2005: 46(1-4), 2006: 47(1-4), 2007: 48(1-4), 2008: 49(1-4), 2009: 50(1-4), 2010: 51(1-4), 2011: 52(1-4), 2012: 53(1-3), 2013: 54(1-4), 2014: 55(1-3), 2015: 56(2-4), 2016: 57(1-4), 2017: 58(1-4), 2018: 59(1-4), 2019: 60(1-6), 2017/2018/2020: 61(1-6), 2021: 62(1-6), 2022: 63(1-6), 2023: 64(1-6), 2024: 65(1-8), 2025: 66(1-7), 2026: 67(1-2)
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LOCKSS Archive
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In Progress
|
2026-02-09
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53, 60
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LOCKSS Archive
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Preserved
|
2026-02-09
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54 to 59
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Library of Congress
|
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Preserved
|
2025-04-07
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|
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59 (1 to 4); 60 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1, 2, 4 to 8)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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|
|
Preserved : 4 (1 to 4); 5 (1 to 4); 6 (1 to 6); 38 (1 to 4); 39 (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 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 9)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 4 (1 to 4); 5 (1 to 4); 6 (1 to 6); 38 (1 to 4); 39 (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 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 9)
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National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 38 (3, 4); 42 (1-4); 43 (1-4); 44 (1-3); 45 (1); 46; 47 (2-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4); 58 (1-4); 59 (1-4); 60 (1-6)
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