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