|
|
Scholars Portal
|
|
Preserved
|
2026-03-19
|
|
|
Preserved : 1 (1 to 3); 2 (1 to 3); 3 (1-2, 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 7 (sup1, 1 to 3); 8 (1 to 4); 9 (sup1, 1 to 4); 10 (1, 2-3, 4); 11 (1 to 4); 12 (sup1, 1 to 3); 13 (1 to 3); 14 (1, 2-3); 15 (1 to 3); 16 (1 to 3); 17 (sup1, 1, 2); 18 (1-3); 19 (2, 3); 20 (sup1, 1 to 3); 21 (1 to 3); 22 (1-3); 23; 24; 25; 26 (2, 3); 27 (1-3); 28 (3); 29 (2, 3); 30; 31 (1 to 3); 32 (1 to 3); 33 (1-2, 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1-2, 3); 38 (1 to 3); 39 (1 to 3); 40 (1-2); 41 (2, 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1, 2); 47 (1 to 3); 48 (1 to 3); 49 (2, 3); 50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1, 2-3); 58 (1-3); 59 (3); 60 (1); 61 (2 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 (2 to 4); 71 (1 to 4)
|
|
|
Internet Archive
|
|
Preserved
|
2025-08-08
|
|
|
1 to 60
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-04-06
|
|
|
1 to 42, 44 to 71
|
|
|
Portico
|
|
Preserved
|
2026-04-09
|
|
|
Preserved : 1945: 1(1-3), 1946: 2(1-3), 1947: 3(1-3), 1948: 4(1-3), 1949: 5(1-3), 1950: 6(1-3), 1951: 7(1-3), 1952: 8(1-4), 1953: 9(1-4), 1954: 10(1-4), 1955: 11(1-4), 1956: 12(1-3), 1957: 13(1-3), 1958: 14(1-3), 1959: 15(1-3), 1960: 16(1-3), 1961: 17(1-2), 1962: 18(1-3), 1963: 19(1-3), 1964: 20(1-3), 1965: 21(1-3), 1966: 22(1-3), 1967: 23(1-3), 1968: 24(1-3), 1969: 25(1-3), 1970: 26(1-3), 1971: 27(1-3), 1977: 28(1-3)
|
|
|
Portico
|
|
Preserved
|
2026-04-09
|
|
|
Preserved : 1978: 29(2-3), 1979: 30(3), 1980: 31(1-3), 1981: 32(1-3), 1982: 33(1-3), 1983: 34(1-3), 1984: 35(1-3), 1985: 36(1-3), 1986: 37(1-3), 1987: 38(1-3), 1988: 39(1-3), 1989: 40(1-2)
|
|
|
Portico
|
|
Preserved
|
2026-04-09
|
|
|
Preserved : 1990: 41(1-3), 1991: 42(1-3), 1992: 43(1-3), 1993: 44(1-3), 1994: 45(1-3), 1995: 46(1-2), 1996: 47(1-3), 1997: 48(1-3), 1998: 49(1-3), 1999: 50(1-3), 2000: 51(1-3), 2001: 52(1-3), 2002: 53(1-3), 2003: 54(1-3), 2004: 55(1-3), 2005: 56(1-3), 2006: 57(1-3), 2007: 58(1-3), 2008: 59(1-3), 2009: 60(1), 2015: 61(1-4), 2016: 62(1-4), 2017: 63(1-4), 2018: 64(1-4), 2019: 65(1-4), 2020: 66(1-4), 2021: 67(1-4), 2022: 68(1-4), 2023: 69(1-4), 2024: 70(1-4), 2025: 71(1-4)
|
|
|
LOCKSS Archive
|
|
Preserved
|
2026-04-06
|
|
|
1 to 42, 44 to 70
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-04-06
|
|
|
59 to 63
|
|
|
LOCKSS Archive
|
|
In Progress
|
2026-04-06
|
|
|
71
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 5 (1 to 3); 6 (1); 7 (2 to 4); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1, 2-3); 58 (1-3); 59 (3); 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 3)
|
|
|
Library of Congress
|
|
Preserved
|
2025-04-07
|
|
|
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 3)
|