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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 6 (1, 2, 3-4, 5, 6); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 8); 14 (, 1 to 6, 8); 15 (, 1 to 8); 16 (, 1 to 8); 17 (, 1 to 8); 18 (, 1 to 9); 19 (, 1 to 9); 20 (, 1 to 9); 21 (, 1 to 12); 22 (, 1 to 13); 23 (, 1 to 13); 24 (, 1 to 13); 25 (, 1 to 13); 26 (, 1 to 13); 27 (, 1 to 13); 28 (, 1 to 13); 29 (, 1 to 13); 30 (, 1 to 13); 31 (, 1 to 14); 32 (, 1 to 14); 33 (, 1 to 14); 34 (, 1 to 15); 35 (, 1 to 15); 36 (, 1 to 15); 37 (, 1, 7 to 12, 14, 15); 38 (, 1 to 15); 39 (, 1 to 15); 40 (, 1 to 15); 41 (, 1 to 15); 42 (, 1 to 10, 12 to 15); 43 (, 1 to 15); 44 (, 1 to 8, 10 to 15); 45 (, 1 to 15); 46 (, 1 to 15); 47 (, 1 to 15); 48 (, 1 to 15); 49 (, 1 to 15); 50 (, 1 to 7); 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 33
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 6(1-6), 1982: 7(1-6), 1983: 8(1-6), 1984: 9(1-6), 1985: 10(1-6), 1986: 11(1-6), 1987: 12(1-6), 1988: 13(1-8), 1989: 14(1-6, 8), 1990: 15(1-8), 1991: 16(1-8), 1992: 17(1-8), 1993: 18(1-9), 1994: 19(1-9), 1995: 20(1-9), 1996: 21(1-12), 1997: 22(1-13), 1998: 23(1-13), 1999: 24(1-13), 2000: 25(1-13), 2001: 26(1-13), 2002: 27(1-13), 2003: 28(1-13), 2004: 29(1-13), 2005: 30(1-13), 2006: 31(1-14), 2007: 32(1-14), 2008: 33(1-14), 2009: 34(1-15), 2010: 35(1-15), 2011: 36(1-15), 2012: 37(1-15), 2013: 38(1-15), 2014: 39(1-15), 2015: 40(1-15), 2016: 41(1-15), 2017: 42(1-15), 2018: 43(1-15), 2019: 44(1-15), 2020: 45(1-15), 2021: 46(1-15), 2022: 47(1-15), 2023: 48(1-15), 2024: 49(1-15), 2025: 50(1-15), 2026: 51(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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16 to 51
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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 : 3 (1 to 9, 11 to 13); 4 (1 to 9, 11 to 15); 5 (1 to 9, 11 to 13); 21 (1 to 9, 11, 12); 22 (1 to 9, 11 to 13); 23 (1 to 9, 11 to 13); 24 (1 to 9, 11 to 13); 25 (1 to 9, 11 to 13); 26 (1 to 9, 11 to 13); 27 (1 to 9, 11 to 13); 28 (1 to 9, 11 to 13); 29 (1 to 9, 11 to 13); 31 (1 to 9, 11 to 14); 32 (1 to 9, 11 to 14); 33 (1 to 9, 11 to 14); 34 (1 to 9, 11 to 15); 35 (1 to 9, 11 to 15); 36 (1 to 9, 11 to 15); 37 (1 to 9, 11 to 15); 38 (1 to 9, 11 to 15); 39 (1 to 9, 11 to 15); 41 (1 to 9, 11 to 15); 42 (1 to 9, 11 to 15); 43 (1 to 9, 11 to 15); 44 (1 to 9, 11 to 15); 45 (1 to 9, 11 to 15); 46 (1 to 9, 11 to 15); 47 (1 to 9, 11 to 15); 48 (1 to 9, 11 to 15); 49 (1 to 9, 11 to 15)
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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 : 3 (1 to 9, 11 to 13); 4 (1 to 9, 11 to 15); 5 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11 to 13); 23 (1 to 9, 11 to 13); 24 (1 to 9, 11 to 13); 25 (1 to 9, 11 to 13); 26 (1 to 9, 11 to 13); 27 (1 to 9, 11 to 13); 28 (1 to 9, 11 to 13); 29 (1 to 9, 11 to 13); 31 (1 to 9, 11 to 14); 32 (1 to 9, 11 to 14); 33 (1 to 9, 11 to 14); 34 (1 to 9, 11 to 15); 35 (1 to 9, 11 to 15); 36 (1 to 9, 11 to 15); 37 (1 to 9, 11 to 15); 38 (1 to 9, 11 to 15); 39 (1 to 9, 11 to 15); 41 (1 to 9, 11 to 15); 42 (1 to 9, 11 to 15); 43 (1 to 9, 11 to 15); 44 (1 to 9, 11 to 15); 45 (1 to 9, 11 to 15); 46 (1 to 9, 11 to 15); 47 (1 to 9, 11 to 15); 48 (1 to 9, 11 to 15); 49 (1 to 9, 11 to 15)
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