Scholars Portal
1953-2025
Preserved
2025-09-02
Preserved : 1 (1 to 12); 2 (, 1 to 12); 3 (, 1 to 12); 4 (, 1 to 12); 5 (, 1 to 12); 6 (, 1 to 12); 7 (, 1 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 12); 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 12); 48 (, 1 to 12); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1, 2 to 4 to 6 to 8 to 12); 52 (, 1 to 12); 53 (, 1 to 8 to 10 to 12); 54 (, 1 to 12); 55 (, 1 to 12); 56 (, 1 to 12); 57 (, 1 to 12); 58 (, 1 to 12); 59 (, 1 to 12); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1 to 12); 67 (, 1 to 12); 68 (, 1 to 12); 69 (, 1 to 12); 70 (, 1 to 12); 71 (, 1 to 12); 72 (, 1 to 12); 73 (, 1 to 6); 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 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; 2024; 2025
Internet Archive
1953-2013
Preserved
2025-08-08
1 to 61
Internet Archive
1899-1964
Preserved
2025-08-08
1 to 50
CLOCKSS Archive
1953-2026
Preserved
2026-02-09
1 to 74
Portico
1953-2026
Preserved
2026-02-12
Preserved : 1953: 1(1-12), 1954: 2(1-12), 1955: 3(1-12), 1956: 4(1-12), 1957: 5(1-12), 1958: 6(1-12), 1959: 7(1-12), 1960: 8(1-12), 1961: 9(1-12), 1962: 10(1-12), 1963: 11(1-12), 1964: 12(1-12), 1965: 13(1-12), 1966: 14(1-12), 1967: 15(1-12), 1968: 16(1-12), 1969: 17(1-12), 1970: 18(1-12), 1971: 19(1-12), 1972: 20(1-12), 1973: 21(1-12), 1974: 22(1-12), 1975: 23(1-12), 1976: 24(1-12), 1977: 25(1-12), 1978: 26(1-12), 1979: 27(1-12), 1980: 28(1-12), 1981: 29(1-12), 1982: 30(1-11, S11, 12), 1983: 31(1-12), 1984: 32(1-12), 1985: 33(1-12), 1986: 34(1-12), 1987: 35(1-12), 1988: 36(1-12), 1989: 37(1-12), 1990: 38(1-12), 1991: 39(1, S 1, 2-12), 1992: 40(1, S1, 2-12), 1993: 41(1, S 1, 2-12), 1994: 42(1-12), 1995: 43(1-12), 1996: 44(1-12), 1997: 45(1-12), 1998: 46(1-12), 1999: 47(1-12), 2000: 48(1, S 1, 2-12), 2001: 49(1-12), 2002: 50(1-12), 2003: 51(1-12), 2004: 52(1-12), 2005: 53(1-12), 2006: 54(1-12), 2007: 55(1-12), 2008: 56(1-12), 2009: 57(1-12), 2010: 58(1-12), 2011: 59(1-12), 2012: 60(1-12), 2013: 61(1-12), 2014: 62(1-12), 2015: 63(1, S1, 2, S2, 3-12), 2016: 64(1, S1, 2, S2, 3-12), 2017: 65(1, S1, 2, S2, 3-12), 2018: 66(1, S1, 2, S2, 3, S3, 4-12), 2019: 67(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5-12), 2020: 68(1, S1, 2, S2, 3, S3, 4-12), 2021: 69(1, S1, 2-12), 2022: 70(1, S1, 2-12), 2023: 71(1, S1, 2, S2, 3-12), 2024: 72(1, S1, 2, S2, 3, S3, 4, S4, 5-12), 2025: 73(1, S1, 2-12), 2026: 74(1)
National Digital Preservation Program, China
1997-2025
Preserved
2025-10-23
Preserved : 5 (S6, 1 to 9, 11, 12); 6 (, 1 to 9, 11, 12); 7 (S1, 1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (S1, 1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (, 1, 2 to 4 to 6 to 9, 11, 12); 52 (, 1 to 9, 11, 12); 53 (, 1 to 9, 11, 12); 54 (S4, 1 to 9, 11, 12); 55 (, 1 to 9, 11, 12); 56 (, 1 to 9, 11, 12); 57 (, 1 to 9, 11, 12); 58 (, 1 to 9, 11, 12); 59 (, 1 to 9, 11, 12); 61 (, 1 to 9, 11, 12); 62 (, 1 to 9, 11, 12); 63 (, 1 to 9, 11, 12); 64 (, 1 to 9, 11, 12); 65 (, 1 to 9, 11, 12); 66 (, 1 to 9, 11, 12); 67 (S1, 1 to 9, 11, 12); 68 (S1, 1 to 9, 11, 12); 69 (S1, 1 to 9, 11, 12); 71 (S1, 1 to 9, 11, 12); 72 (S1, 1 to 9, 11, 12); 73 (S1, 1 to 9)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 5 (S6, 1 to 9, 11, 12); 6 (, 1 to 9, 11, 12); 7 (S1, 1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (S1, 1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (, 1, 2 to 4 to 9, 11, 12); 52 (, 1 to 9, 11, 12); 53 (, 1 to 8, 9s, 11, 12); 54 (S4, 1 to 9, 11, 12); 55 (, 1 to 9, 11, 12); 56 (, 1 to 9, 11, 12); 57 (, 1 to 9, 11, 12); 58 (, 1 to 9, 11, 12); 59 (, 1 to 9, 11, 12); 61 (, 1 to 9, 11, 12); 62 (, 1 to 9, 11, 12); 63 (, 1 to 9, 11, 12); 64 (, 1 to 9, 11, 12); 65 (, 1 to 9, 11, 12); 66 (S2, 1 to 9, 11, 12); 67 (S1, 1 to 9, 11, 12); 68 (S1, 1 to 9, 11, 12); 69 (S1, 1 to 9, 11, 12); 71 (S1, 1 to 9, 11, 12); 72 (S1, 1 to 9, 11, 12); 73 (S1, 1 to 9)
National Library of the Netherlands
2006-2007
Preserved
2024-12-15
Preserved : 54 (S4, 1-11); 55 (s1, 1-12)