Scholars Portal
1958-2025
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 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1, 2-3, 4); 22 (, 1, 2); 27 (, 3, 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1, 2, 3-4); 43 (, 1, 2, 3-4); 44 (, 1, 2, 3-4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1, 2-3, 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 (, 2 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1, 3); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1-2, 3, 4); 63 (, 1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 3); 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 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
Internet Archive
1958-2015
Preserved
2025-08-08
1 to 57
LOCKSS Archive
1958-2024
Preserved
2026-02-09
1 to 66
CLOCKSS Archive
1958-2025
Preserved
2026-02-09
1 to 67
LOCKSS Archive
2025-2025
In Progress
2026-02-09
67
Portico
1958-2025
Preserved
2026-02-12
Preserved : 1958/1959: 1(1-4), 1959/1960: 2(1-4), 1960/1961: 3(1-4), 1961/1962: 4(1-4), 1962/1963: 5(1-4), 1963/1964: 6(1-4), 1964/1965: 7(1-4), 1965/1966: 8(1-4), 1966/1967: 9(1-4), 1967/1968: 10(1-4), 1968/1969: 11(1-4), 1969/1970: 12(1-4), 1970/1971: 13(1-4), 1971/1972: 14(1-4), 1972/1973: 15(1-4), 1973/1974: 16(1-4), 1974/1975: 17(1-4), 1975/1976: 18(1-4), 1976/1977: 19(1-4), 1977/1978: 20(1-4), 1978/1979: 21(1-4), 1979/1980: 22(1-4), 1980/1981: 23(1-4), 1981/1982: 24(1-4), 1982/1983: 25(1-4), 1983/1984: 26(1-4), 1984/1985: 27(1-4), 1985/1986: 28(1-4), 1986/1987: 29(1-4), 1987/1988: 30(1-4), 1988/1989: 31(1-4), 1989/1990: 32(1-4), 1990/1991: 33(1-4), 1991/1992: 34(1-4), 1992/1993: 35(1-4), 1993/1994: 36(1-4), 1994/1995: 37(1-4), 1995/1996: 38(1-4), 1996/1997: 39(1-4), 1997/1998: 40(1-4), 1998/1999: 41(1-4), 1999/2000: 42(1-4), 2000/2001: 43(1-4), 2001/2002: 44(1-4), 2002/2003: 45(1-4), 2003/2004: 46(1-4), 2004/2005: 47(1-4), 2005/2006: 48(1-4), 2006/2007: 49(1-4), 2007/2008: 50(1-4), 2008/2009: 51(1-4), 2009/2010: 52(1-4), 2010/2011: 53(1-4), 2011/2012: 54(1-4), 2012/2013: 55(1-4), 2013/2014: 56(1-4), 2014/2015: 57(1-4), 2015/2016: 58(1-4), 2016/2017: 59(1-4), 2017/2018: 60(1-4), 2018/2019: 61(1-4), 2019/2020: 62(1-4), 2020/2021: 63(1-4), 2021/2022: 64(1-4), 2022/2023: 65(1-4), 2024: 66(1-4), 2025: 67(1-4)
National Digital Preservation Program, China
1997-2024
Preserved
2025-12-04
Preserved : 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 39 (3, 4); 41 (1 to 4); 42 (1, 2, 3-4); 43 (1, 2, 3-4); 44 (1, 2, 3-4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1, 2-3, 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 4); 62 (1-2, 3, 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4)
Library of Congress
2017-2024
Preserved
2025-04-07
57 (2); 59 (4); 60 (1 to 4); 61 (1 to 4); 62 (1-2, 3, 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4)