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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (4); 2 (, 1 to 4); 3 (, 2 to 4); 4 (, 1, 4); 8 (, 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1, 2); 13 (, 1 to 4); 14 (, 1, 2, 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1, 2, 4 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 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 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 2 to 6); 65 (, 1); 66 (, 2); 67 (, 1 to 6); 68 (, 1 to 6); 69 (, 1 to 3); 70 (, 6); 1956; 1957; 1958; 1959; 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
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Internet Archive
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Preserved
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2025-08-08
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31 to 58
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Portico
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Preserved
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2026-02-12
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Preserved : 1955/1956: 1(1-4), 1956/1957: 2(1-4), 1957/1958: 3(1-4), 1958/1959: 4(1-4), 1959/1960: 5(1-4), 1960/1961: 6(1-4), 1961/1962: 7(1-4), 1962/1963: 8(1-4), 1963/1964: 9(1-4), 1964/1965: 10(1-4), 1965/1966: 11(1-4), 1966: 12(1-3), 1967: 13(1-4), 1968: 14(1-4), 1969: 15(1-4), 1970: 16(1-4), 1971: 17(1-4), 1972: 18(1-4), 1973: 19(1-4), 1974: 20(1-6), 1975: 21(1-6), 1976: 22(1-6), 1977: 23(1-6), 1978: 24(1-6), 1979: 25(1-2, 4-6), 1980: 26(1-6), 1981: 27(1-6), 1982: 28(1-6), 1983: 29(1-6), 1984: 30(1-6), 1985: 31(1-6), 1986: 32(1-6), 1987: 33(1-6), 1988: 34(1-6), 1989: 35(1-6), 1990: 36(1-6), 1991: 37(1-6), 1992: 38(1-6), 1993: 39(1-6), 1994: 40(1-6), 1995: 41(1-6), 1996: 42(1-6), 1997: 43(1-6), 1998: 44(1-6), 1999: 45(1, 3-6), 2000: 46(1, 4-6), 2001: 47(1-6), 2002: 48(1-6), 2003: 49(1-6), 2004: 50(1-2, 4-6), 2005: 51(2-3, 5-6), 2006: 52(1, 3-6), 2007: 53(1-6), 2007/2008: 54(1-6), 2008/2009: 55(1-6), 2009/2010: 56(1-6), 2010/2011: 57(1-6), 2011/2012: 58(1-6), 2012/2013: 59(1-6), 2014: 60(1-6), 2014/2015: 61(1-6), 2015/2016: 62(1-6), 2016/2017: 63(1-6), 2018: 64(1-6), 2019: 65(1-6), 2020: 66(1-6), 2021: 67(1-6), 2022: 68(1-6), 2023: 69(1-6), 2024: 70(1-6), 2025: 71(1-6), 2026: 72(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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51 to 55, 57 to 70
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CLOCKSS Archive
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Preserved
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2026-02-09
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54 to 61
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CLOCKSS Archive
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In Progress
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2026-02-09
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62 to 71
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LOCKSS Archive
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In Progress
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2026-02-09
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71
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 65 (2, 5, 6); 66 (, 1, 5, 6); 67 (, 1, 3); 68 (, 3 to 6); 69 (, 1, 2); 71 (, 2); 2019; 2020; 2021; 2022; 2023; 2025
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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 : ; 6 (1 to 6); 7 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 6); 69 (1 to 6); 71 (1 to 5)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : ; 6 (1 to 6); 7 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 6); 69 (1 to 6); 71 (1 to 6)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 1 (4); 2 (2-4); 3 (2-4); 4; 8; 9 (2-4); 10 (2, 3); 11 (1, 4); 12 (2); 13 (1-4); 14 (1, 2, 4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1, 2, 4-6); 26 (1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6)
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British Library
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Preserved
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2019-09-18
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Preserved : 60 (1 to 4; 6), 61 (1 to 6), 62 (3 to 6), 63 (1 to 3), 64 (2 to 5), 65 (2)
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