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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); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1); 7 (, 1, 2); 8 (, 1); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1, 2, 3‐4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1‐2, 3); 17 (, 1, 2, 3‐4); 18 (, 1 to 4); 19 (, 1, 2, 3‐4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 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, 2, 3-4, 5, 6); 45 (, 1 to 6); 46 (, 1 to 8); 47 (, 1 to 3, 4-5, 6 to 8); 48 (, 1 to 3, 4-5, 6 to 8); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 7, 8‐9, 10 to 12); 53 (, 1 to 12); 54 (, 1 to 12); 55 (, 1 to 12); 56 (, 1 to 6, 7‐8, 9 to 12); 57 (, 1 to 12); 58 (, 3 to 12); 59 (, 1 to 12); 60 (, 1 to 6, 7-8, 9 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 63 (, 1 to 12); 64 (, 1 to 12); 65 (, 1 to 12); 66 (, 1-2, 3 to 7, 8-9, 10 to 12); 67 (, 1 to 12); 68 (, 1 to 12); 69 (, 1 to 8); 1957; 1958; 1959; 1960; 1961; 1962; 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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16 to 51
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Portico
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Preserved
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2026-02-12
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Preserved : 1957: 1(1-2), 1958: 2(1-2), 1959: 3(1-2), 1960: 4(1-2), 1961: 5(1-2), 1962: 6(1), 1963: 7(1-2), 1964: 8(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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5, 23, 35 to 70
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Portico
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Preserved
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2026-02-12
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Preserved : 1965: 9(1-4), 1966: 10(1-4), 1967: 11(1-4), 1968: 12(1-4), 1969: 13(1-4), 1970: 14(1-4), 1971: 15(1-4), 1972: 16(1-3), 1973: 17(1-4), 1974: 18(1-4), 1975: 19(1-4), 1976: 20(1-4), 1977: 21(1-4), 1978: 22(1-4), 1979: 23(1-4), 1980: 24(1-4), 1981: 25(1-4), 1982: 26(1-4), 1983: 27(1-4), 1984: 28(1-4), 1985: 29(1-4), 1986: 30(1-4), 1987: 31(1-4), 1988: 32(1-6), 1989: 33(1-6), 1990: 34(1-6), 1991: 35(1-6), 1992: 36(1-6), 1993: 37(1-6), 1994: 38(1-6), 1995: 39(1-6), 1996: 40(1-6), 1997: 41(1-6), 1998: 42(1-6), 1999: 43(1-6), 2000: 44(1-2, 5-6), 2001: 45(1-6), 2002: 46(1-7), 2003: 47(1-3, 6-7), 2004: 48(1-3, 6-7), 2005: 49(1-7), 2006: 50(1-7), 2007: 51(1-7), 2008: 52(1-7), 2009: 53(1-7), 2010: 54(1-7), 2011: 55(1-12), 2012: 56(1-12), 2013: 57(1-12), 2014: 58(1-12), 2015: 59(1, S1, 2-12), 2016: 60(1-12), 2017: 61(1-12), 2018: 62(1-12), 2019: 63(1-12), 2020: 64(1-12), 2021: 65(1-12), 2022: 66(1-12), 2023: 67(1-12), 2024: 68(1-12), 2025: 69(1-12), 2026: 70(1-3)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 5 (1 to 9, 11, 12); 6 (1 to 6, 7-8, 9, 11, 12); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1, 2, 3?4, 5, 6); 45 (1 to 6); 46 (, 1 to 8); 47 (, 1 to 3, 4?5, 6 to 8); 48 (1 to 3, 4?5, 6 to 8); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 7, 8?9, 11, 12); 53 (1 to 9, 11, 12); 54 (, 1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 6, 7?8, 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (, 1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1-2, 3 to 7, 8-9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 3, 5 to 9, 11, 12); 69 (1 to 9)
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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 9, 11, 12); 6 (1 to 6, 7-8, 9, 11, 12); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1, 2, 3?4, 5, 6); 45 (1 to 6); 46 (, 1 to 8); 47 (, 1 to 3, 4?5, 6 to 8); 48 (1 to 3, 4?5, 6 to 8); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 7, 8?9, 11, 12); 53 (1 to 9, 11, 12); 54 (, 1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 6, 7?8, 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (, 1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (1-2, 3 to 7, 8-9, 11, 12); 67 (1 to 9, 11, 12); 68 (1 to 3, 5 to 9, 11, 12); 69 (1 to 9, 11)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 50 (1-12); 51 (1-12)
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