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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1-2); 48; 49; 50; 51; 52; 53 (2); 54 (1-2); 55; 56 (2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 60 (1, 2); 61 (1 to 3); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 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 3)
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CLOCKSS Archive
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Preserved
|
2026-04-13
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1 to 65
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Portico
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Preserved
|
2026-04-16
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Preserved : 1954: 1(1-2), 1955: 2(1-2), 1956: 3(1-2), 1957: 4(1-2), 1958: 5(1-2), 1959: 6(1-2), 1960: 7(1-2), 1961: 8(1-2), 1962: 9(1-2), 1963: 10(1-2), 1964: 11(1-2), 1965: 12(1-2), 1966: 13(1-2), 1967: 14(1-2), 1968: 15(1-2), 1969: 16(1-2), 1970: 17(1-2), 1971: 18(1-2), 1972: 19(1-2), 1973: 20(1-2), 1974: 21(1-2), 1975: 22(1-2), 1976: 23(1-2), 1977: 24(1-2), 1978: 25(1-2), 1979: 26(1-2), 1980: 27(1-2), 1981: 28(1-2), 1982: 29(1-2), 1983: 30(1-2), 1984: 31(1-2), 1985: 32(1-2), 1986: 33(1-2), 1987: 34(1-2), 1988: 35(1-2), 1989: 36(1-2), 1990: 37(1-2), 1991: 38(1-2), 1992: 39(1-2), 1993: 40(1-2), 1994: 41(1-2), 1995: 42(1-2), 1996: 43(1-2), 1997: 44(1-2), 1998: 45(1-2), 1999: 46(1-2), 2000: 47(1-2), 2001: 48(1-2), 2002: 49(1-2), 2003: 50(1-2), 2004: 51(1-2), 2005: 52(1-2), 2006: 53(1-2), 2007: 54(1-2), 2009: 55(1-2), 2010: 56(1-2), 2011: 57(1-2), 2012: 58(1-2), 2013: 59(1-2), 2013/2014: 60(1-2), 2014/2015: 61(1-2), 2015/2016: 62(1-3), 2016/2017: 63(1-3), 2018: 64(1-3), 2018/2019: 65(1-4)
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|
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CLOCKSS Archive
|
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Preserved
|
2026-04-13
|
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1 to 72
|
|
|
Portico
|
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Preserved
|
2026-04-16
|
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Preserved : 1954: 1(1-2), 1955: 2(1-2), 1956: 3(1-2), 1957: 4(1-2), 1958: 5(1-2), 1959: 6(1-2), 1960: 7(1-2), 1961: 8(1-2), 1962: 9(1-2), 1963: 10(1-2), 1964: 11(1-2), 1965: 12(1-2), 1966: 13(1-2), 1967: 14(1-2), 1968: 15(1-2), 1969: 16(1-2), 1970: 17(1-2), 1971: 18(1-2), 1972: 19(1-2), 1973: 20(1-2), 1974: 21(1-2), 1975: 22(1-2), 1976: 23(1-2), 1977: 24(1-2), 1978: 25(1-2), 1979: 26(1-2), 1980: 27(1-2), 1981: 28(1-2), 1982: 29(1-2), 1983: 30(1-2), 1984: 31(1-2), 1985: 32(1-2), 1986: 33(1-2), 1987: 34(1-2), 1988: 35(1-2), 1989: 36(1-2), 1990: 37(1-2), 1991: 38(1-2), 1992: 39(1-2), 1993: 40(1-2), 1994: 41(1-2), 1995: 42(1-2), 1996: 43(1-2), 1997: 44(1-2), 1998: 45(1-2), 1999: 46(1-2), 2000: 47(1-2), 2001: 48(1-2), 2002: 49(1-2), 2003: 50(1-2), 2004: 51(1-2), 2005: 52(1-2), 2006: 53(1-2), 2007: 54(1-2), 2009: 55(1-2), 2010: 56(1-2), 2011: 57(1-2), 2012: 58(1-2), 2013: 59(1-2), 2014: 60(1-2), 2015: 61(1-3), 2016: 62(1-3), 2017: 63(1-3), 2018: 64(1-3), 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), 2026: 72(1-2)
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|
|
Library of Congress
|
|
Preserved
|
2025-04-07
|
|
|
65 (4)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 5 (1-2); 6 (2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1-2); 48; 49; 51; 52; 53 (2); 54 (1-2); 55; 56 (2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 61 (1 to 3); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 5 (1-2); 6 (2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1-2); 48; 49; 51; 52; 53 (2); 54 (1-2); 55; 56 (2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 61 (1 to 3); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4)
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