Scholars Portal
1936-2026
Preserved
2026-03-19
Preserved : 1 (1 to 4); 2 (sup1, 1 to 4); 3 (sup1, 1 to 4); 4 (sup1, 1 to 4); 5 (sup1, 1 to 4); 6 (sup1, 1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (sup1, 1 to 4); 10 (1 to 4); 11 (sup1, 1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (sup1, 1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (sup2, 1 to 4); 18 (sup1, 1 to 4); 19 (sup2, 1 to 4); 20 (sup1, 1 to 4); 21 (sup1, 1 to 4); 22 (sup1, 1 to 4); 23 (sup1, 1 to 4); 24 (sup1, 1 to 4); 25 (sup1, 1 to 4); 26 (sup1, 1 to 4); 27 (sup1, 1 to 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 to 4); 43 (1 to 4); 44 (1); 48; 49 (2 to 4); 50 (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); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 70 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1, 2, 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 80 (1 to 4); 81 (1 to 4); 82 (2 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 90 (1)
Internet Archive
1936-2015
Preserved
2025-08-08
1 to 79
LOCKSS Archive
1936-2024
Preserved
2026-04-27
1 to 88
CLOCKSS Archive
1936-2025
Preserved
2026-04-27
1 to 90
LOCKSS Archive
2025-2026
In Progress
2026-04-27
89, 90
Portico
1962-2026
Preserved
2026-04-23
Preserved : 1962/1963: 27(1-4), 1963/1964: 28(1-4), 1964/1965: 29(1-4), 1965/1966: 30(1-4), 1966/1967: 31(1-4), 1967/1968: 32(1-4), 1968/1969: 33(1-4), 1969/1970: 34(1-4), 1970/1971: 35(1-4), 1971/1972: 36(1-4), 1972/1973: 37(1-4), 1973/1974: 38(1-4), 1974/1975: 39(1-4), 1975/1976: 40(1-4), 1976/1977: 41(1-4), 1977/1978: 42(1-4), 1978/1979: 43(1-4), 1979/1980: 44(1-4), 1980/1981: 45(1-4), 1981/1982: 46(1-4), 1983: 47(1-4), 1984: 48(1-4), 1985: 49(1-4), 1986: 50(1-4), 1987: 51(1-4), 1988: 52(1-4), 1989: 53(1-4), 1990: 54(1-4), 1990/1991: 55(1-4), 1992: 56(1-4), 1993: 57(1-4), 1994: 58(1-4), 1995: 59(1-4), 1996: 60(1-4), 1997: 61(1-4), 1997/1998: 62(1-4), 1998/1999: 63(1-4), 1999/2000: 64(1-4), 2000/2001: 65(1-4), 2001/2002: 66(1-4), 2002/2003: 67(1-4), 2003/2004: 68(1-4), 2004/2005: 69(1-4), 2005/2006: 70(1-4), 2007: 71(1-4), 2008: 72(1-4), 2009: 73(1-4), 2010: 74(1-4), 2011: 75(1-4), 2012: 76(1-4), 2013: 77(1-4), 2014: 78(1-4), 2015: 79(1-4), 2016: 80(1-4), 2017: 81(1-4), 2018: 82(1-4), 2019: 83(1-4), 2020: 84(1-4), 2021: 85(1-4), 2021/2022: 86(1-4), 2023: 87(1-4), 2024: 88(1-4), 2025: 89(1-4), 2026: 90(1-2)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 7 (2 to 4); 8 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1)
Library of Congress
2017-2024
Preserved
2025-04-07
81 (2 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4)