Internet Archive
1998-2000
Preserved
2025-08-08
22 to 24
Scholars Portal
1977-2023
Preserved
2025-09-02
Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 9); 21 (, 1 to 9); 22 (, 1 to 9); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 12); 47 (, 1 to 7, 10); 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
Portico
1977-2023
Preserved
2026-02-12
Preserved : 1977: 1(1-4), 1978: 2(1-4), 1979: 3(1-4), 1980: 4(1-4), 1981: 5(1-4), 1982: 6(1-4), 1983: 7(1-4), 1984: 8(1-6), 1985: 9(1-6), 1986: 10(1-6), 1987: 11(1-6), 1988: 12(1-6), 1989: 13(1-6), 1990: 14(1-6), 1991: 15(1-6), 1992: 16(1-6), 1993: 17(1-6), 1994: 18(1-6), 1995: 19(1-6), 1996: 20(1-9), 1997: 21(1-9), 1998: 22(1-3, S3 Part1, S3 Part2, S3 Part3, 4-9), 1999: 23(1-12), 2000: 24(1-4, S4, 5-12), 2001: 25(1-12), 2002: 26(1-12), 2003: 27(1-12), 2004: 28(1-5, S5, 6-12), 2005: 29(1-12), 2006: 30(1-12), 2007: 31(1-12), 2008: 32(1-12), 2009: 33(1-12), 2010: 34(1-12), 2011: 35(1-12), 2012: 36(1-12), 2013: 37(1-12), 2014: 38(1-12), 2015: 39(1, S1, 2-12), 2016: 40(1, S1, 2-12), 1997/2017: 41(1, S1, 2-12), 2018: 42(1, S1, 2, S2, 3-12), 2019: 43(1, S1, 2-12), 2020: 44(1, S1, 2-12), 2021: 45(1, S1, 2-12), 2022: 46(1, S1, 2, S2, 3-12), 2023: 47(1, S1, 2-7, 10)
CLOCKSS Archive
1980-2023
Preserved
2026-02-09
4, 15 to 47
Library of Congress
1998-2023
Preserved
2025-04-07
22 (S3_Part2, S3 Part1, S3 Part3); 23 (s4); 24 (S4); 28 (S5); 38 (1 to 12, s1); 39 (1 to 12, S1); 40 (1 to 12, S1); 41 (1, 3, 4, 10 to 12, S1); 42 (1, 3, 11, 12, S1, S2); 43 (2, 4 to 12, S1); 44 (1 to 6, 8 to 10, S1); 45 (1 to 7, 9 to 12, S1); 46 (1 to 12, S1, S2); 47 (10)
National Digital Preservation Program, China
1997-2023
Preserved
2025-10-23
Preserved : 3 (s1, 1 to 9, 11, 12); 4 (, 1 to 9, 11, 12); 21 (s3, 1 to 9); 22 (S2, 1 to 9); 23 (s4, 1 to 9, 11, 12); 24 (, 1 to 9, 11, 12); 25 (, 1 to 9, 11, 12); 26 (, 1 to 9, 11, 12); 27 (s6, 1 to 9, 11, 12); 28 (s1, 1 to 9, 11, 12); 29 (s1, 1 to 9, 11, 12); 31 (s1, 1 to 9, 11, 12); 32 (s1, 1 to 9, 11, 12); 33 (s1, 1 to 9, 11, 12); 34 (, 1 to 9, 11, 12); 35 (, 1 to 9, 11, 12); 36 (s1, 1 to 9, 11, 12); 37 (s1, 1 to 9, 11, 12); 38 (, 1 to 9, 11); 39 (, 1 to 9, 11, 12); 41 (, 1 to 9, 11, 12); 42 (, 1 to 9, 11, 12); 43 (S1, 1, 2, 4 to 9, 11, 12); 44 (S1, 1 to 9, 11, 12); 45 (S1, 1 to 9, 11, 12); 46 (S1, 1 to 9, 12); 47 (S1, 1 to 7)
National Digital Preservation Program, China
1997-2023
Preserved
2025-12-04
Preserved : 3 (s1, 1 to 9, 11, 12); 4 (, 1 to 9, 11, 12); 21 (s3, 1 to 9); 22 (S2, 1 to 9); 23 (s4, 1 to 9, 11, 12); 24 (, 1 to 9, 11, 12); 25 (, 1 to 9, 11, 12); 26 (, 1 to 9, 11, 12); 27 (s6, 1 to 9, 11, 12); 28 (s1, 1 to 9, 11, 12); 29 (s1, 1 to 9, 11, 12); 31 (s1, 1 to 9, 11, 12); 32 (s1, 1 to 9, 11, 12); 33 (s1, 1 to 9, 11, 12); 34 (, 1 to 9, 11, 12); 35 (, 1 to 9, 11, 12); 36 (s1, 1 to 9, 11, 12); 37 (s1, 1 to 9, 11, 12); 38 (, 1 to 9, 11); 39 (, 1 to 9, 11, 12); 41 (, 1 to 9, 11, 12); 42 (, 1 to 9, 11, 12); 43 (S1, 1, 2, 4 to 9, 11, 12); 44 (S1, 1 to 9, 11, 12); 45 (S1, 1 to 9, 11, 12); 46 (S1, 1 to 9, 12); 47 (S1, 1 to 7)
National Library of the Netherlands
2006-2007
Preserved
2024-12-15
Preserved : 30 (s2, 1-12); 31 (s1, 1-12)