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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1); 2 (, 1); 3 (, 1); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1); 8 (, 1); 9 (, 1); 10 (, 1); 11 (, 1); 12 (, 1); 13 (, 1); 14 (, 1); 15 (, 1); 16 (, 1); 17 (, 1); 18 (, 1); 19 (, 1); 20 (, 1); 21 (, 1); 22 (, 1); 23 (, 1); 24 (, 1); 25 (, 1); 26 (, 1); 27 (, 1); 28 (, 1); 29 (, 1); 30 (, 1); 31 (, 1, 2); 32 (, 1, 2); 33 (, 1, 2); 34 (, 1, 2); 35 (, 1, 2); 36 (, 1, 2); 37 (, 1, 2); 38 (, 1, 2); 39 (, 1 to 3); 40 (, 1 to 3); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1, 2); 49 (, 1 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 to 4); 77 (, 1 to 3); 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
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Internet Archive
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Preserved
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2025-08-08
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to 57
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 76
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 77
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LOCKSS Archive
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In Progress
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2026-02-09
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77
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Portico
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Preserved
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2026-02-12
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Preserved : 1963: 1(1), 1964: 2(1), 1964: 3(1), 1965: 4(1), 1965: 5(1), 1966: 6(1), 1966: 7(1), 1967: 8(1), 1967: 9(1), 1968: 10(1), 1968: 11(1), 1969: 12(1), 1970: 13(1), 1970: 14(1), 1971: 15(1), 1971: 16(1), 1972: 17(1), 1972: 18(1), 1973: 19(1), 1973: 20(1), 1974: 21(1), 1974: 22(1), 1975: 23(1), 1975: 24(1), 1976: 25(1), 1976: 26(1), 1977: 27(1), 1977: 28(1), 1978: 29(1), 1978: 30(1), 1979: 31(1-2), 1980: 32(1-2), 1981: 33(1-2), 1982: 34(1-2), 1983: 35(1-2), 1984: 36(1-2), 1985: 37(1-2), 1986: 38(1-2), 1987: 39(1-3), 1988: 40(1-3), 1989: 41(1-3), 1990: 42(1-3), 1991: 43(1-3), 1992: 44(1-3), 1993: 45(1-4), 1994: 46(1-4), 1995: 47(1-4), 1996: 48(1-4), 1997: 49(1-4), 1998: 50(1-4), 1999: 51(1-4), 2000: 52(1-4), 2001: 53(1-4), 2002: 54(1-4), 2003: 55(1-4), 2004: 56(1-4), 2005: 57(1-4), 2006: 58(1-4), 2007: 59(1-4), 2008: 60(1-4), 2009: 61(1-4), 2010: 62(1-4), 2011: 63(1-4), 2012: 64(1-4), 2013: 65(1-4), 2014: 66(1-4), 2015: 67(1-4), 2016: 68(1-4), 2017: 69(1-4), 2018: 70(1-4), 2019: 71(1-4), 2020: 72(1-4), 2021: 73(1-4), 2022: 74(1-4), 2023: 75(1-4), 2024: 76(1-4), 2025: 77(1, sup1, 1, 2-4), 2026: 78(1)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 49 (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); 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, 2)
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Library of Congress
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Preserved
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2025-04-07
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69 (2 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 to 4)
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