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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 to 4); 4 (, 1 to 4); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 8); 9 (, 1 to 8); 10 (, 1 to 8); 11 (, 1 to 10); 12 (, 1 to 10); 13 (, 1 to 10); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 4, 5-6, 7 to 16); 18 (, 1 to 16); 19 (, 1 to 16); 20 (, 1 to 16); 21 (, 1 to 16); 22 (, 15); 23 (, 2 to 16); 24 (, 1 to 16); 25 (, 1 to 16); 26 (, 1 to 16); 27 (, 1 to 16); 28 (, 1 to 16); 29 (, 1 to 16); 30 (, 1 to 16); 31 (, 1 to 13, 15, 16); 32 (, 1 to 9, 11 to 16); 33 (, 1 to 4, 6, 16 to 32); 34 (, 1 to 32); 35 (, 1, 2, 4 to 32); 36 (, 1 to 32); 37 (, 1 to 32); 38 (, 1 to 18, 20 to 23, 25 to 32); 39 (, 1 to 32); 40 (, 1 to 32); 41 (, 1 to 32); 42 (, 1 to 32); 43 (, 1 to 32); 44 (, 1 to 32); 45 (, 1 to 32); 46 (, 1 to 18); 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 23
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 1(1-4), 1981: 2(1-4), 1982: 3(1-4), 1983: 4(1-4), 1984: 5(1-6), 1985: 6(1-6), 1986: 7(1-6), 1987: 8(1-8), 1988: 9(1-8), 1989: 10(1-8), 1990: 11(1-10), 1991: 12(1-10), 1992: 13(1-10), 1993: 14(1-12), 1994: 15(1-12), 1995: 16(1-12), 1996: 17(1-16), 1997: 18(1-16), 1998: 19(1-16), 1999: 20(1-16), 2000: 21(1-16), 2001: 22(1-16), 2002: 23(1-16), 2003: 24(1-16), 2004: 25(1-16), 2005: 26(1-16), 2006: 27(1-16), 2007: 28(1-16), 2008: 29(1-16), 2009: 30(1-16), 2010: 31(1-16), 2011: 32(1-16), 2012: 33(1-32), 2013: 34(1-32), 2014: 35(1-32), 2015: 36(1-32), 2016: 37(1-32), 2017: 38(1-32), 2018: 39(1-32), 2019: 40(1-32), 2020: 41(1-32), 2021: 42(1-32), 2022: 43(1-32), 2023: 44(1-32), 2024: 45(1-32), 2025: 46(1-32), 2026: 47(1-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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7, 12 to 47
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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 9, 11 to 16); 3 (1 to 9, 11 to 16); 4 (1 to 9, 11 to 19, 21 to 29, 31, 32); 17 (1 to 4, 5‐6, 7 to 9, 11 to 16); 18 (1 to 9, 11 to 16); 19 (1 to 9, 11 to 16); 21 (1 to 9, 11 to 16); 22 (1 to 9, 11 to 16); 23 (1 to 9, 11 to 16); 24 (1 to 9, 11 to 16); 25 (1 to 9, 11 to 16); 26 (1 to 9, 11 to 16); 27 (1 to 9, 11 to 16); 28 (1 to 9, 11 to 16); 29 (1 to 9, 11 to 16); 31 (1 to 9, 11 to 16); 32 (1 to 9, 11 to 16); 33 (1 to 9, 11 to 19, 21 to 29, 31, 32); 34 (1 to 9, 11 to 19, 21 to 29, 31, 32); 35 (1 to 9, 11 to 19, 21 to 29, 31, 32); 36 (1 to 9, 11 to 19, 21 to 29, 31, 32); 37 (1 to 9, 11 to 19, 21 to 29, 31, 32); 38 (1 to 9, 11 to 19, 21 to 29, 31, 32); 39 (1 to 9, 11 to 19, 21 to 29, 31, 32); 41 (1 to 9, 11 to 19, 21 to 29, 31, 32); 42 (1 to 9, 11 to 19, 21 to 29, 31, 32); 43 (1 to 9, 11 to 19, 21 to 29, 31, 32); 44 (1 to 9, 11 to 14, 16 to 19, 21 to 29, 31); 45 (1 to 9, 11 to 14, 16 to 19, 21 to 26, 28, 29, 32); 46 (1 to 9, 11 to 19, 21, 22, 24 to 28)
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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 9, 11 to 16); 3 (1 to 9, 11 to 16); 4 (1 to 9, 11 to 19, 21 to 29, 31, 32); 17 (1 to 4, 5‐6, 7 to 9, 11 to 16); 18 (1 to 9, 11 to 16); 19 (1 to 9, 11 to 16); 21 (1 to 9, 11 to 16); 22 (1 to 9, 11 to 16); 23 (1 to 9, 11 to 16); 24 (1 to 9, 11 to 16); 25 (1 to 9, 11 to 16); 26 (1 to 9, 11 to 16); 27 (1 to 9, 11 to 16); 28 (1 to 9, 11 to 16); 29 (1 to 9, 11 to 16); 31 (1 to 9, 11 to 16); 32 (1 to 9, 11 to 16); 33 (1 to 9, 11 to 19, 21 to 29, 31, 32); 34 (1 to 9, 11 to 19, 21 to 29, 31, 32); 35 (1 to 9, 11 to 19, 21 to 29, 31, 32); 36 (1 to 9, 11 to 19, 21 to 29, 31, 32); 37 (1 to 9, 11 to 19, 21 to 29, 31, 32); 38 (1 to 9, 11 to 19, 21 to 29, 31, 32); 39 (1 to 9, 11 to 19, 21 to 29, 31, 32); 41 (1 to 9, 11 to 19, 21 to 29, 31, 32); 42 (1 to 9, 11 to 19, 21 to 29, 31, 32); 43 (1 to 9, 11 to 19, 21 to 29, 31, 32); 44 (1 to 9, 11 to 14, 16 to 19, 21 to 29, 31); 45 (1 to 9, 11 to 14, 16 to 19, 21 to 26, 28, 29, 32); 46 (1 to 9, 11 to 19, 21, 22, 24)
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