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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 to 3); 2 (, 1 to 3); 3 (, 1 to 3); 4 (, 1 to 3); 5 (, 1 to 3); 6 (, 1 to 3); 7 (, 1 to 3); 8 (, 1 to 3); 9 (, 1 to 3); 10 (, 1 to 3); 11 (, 1 to 3); 12 (, 1 to 3); 13 (, 1 to 3); 14 (, 1 to 3); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1 to 3); 18 (, 1 to 3); 19 (, 1 to 3); 20 (, 1 to 3); 21 (, 1 to 3); 22 (, 1); 23 (, 3); 27 (, 1 to 3); 28 (, 1 to 3); 29 (, 1 to 3); 30 (, 1 to 3); 31 (, 1 to 3); 32 (, 1 to 3); 33 (, 1 to 3); 34 (, 1 to 3); 35 (, 1 to 3); 36 (, 1 to 3); 37 (, 1 to 3); 38 (, 1 to 3); 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 3); 46 (, 1 to 3); 47 (, 1 to 3); 48 (, 1 to 3); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1, 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 3); 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1981; 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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1 to 49
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 66
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 67
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LOCKSS Archive
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In Progress
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2026-02-09
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67
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Portico
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Preserved
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2026-02-12
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Preserved : 1959: 2(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1961: 3(1), 1961: 4(1), 1962: 5(1), 1963: 6(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1965: 7(1), 1965: 8(1), 1966: 9(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1967: 10(1), 1968/1969: 11(1-3), 1969/1970: 12(1-3), 1970/1971: 13(1-3), 1971/1972: 14(1-3), 1972/1973: 15(1-3), 1973/1974: 16(1-3), 1974/1975: 17(1-3), 1975/1976: 18(1-3), 1976/1977: 19(1-3), 1977/1978: 20(1-3), 1978/1979: 21(1-3), 1979/1980: 22(1-3), 1980/1981: 23(1-3), 1981/1982: 24(1-3), 1983: 25(1-3), 1984: 26(1-3), 1985: 27(1-3), 1986: 28(1-3), 1987: 29(1-3), 1988: 30(1-3), 1989: 31(1-3), 1990: 32(1-3), 1991: 33(1-3), 1992: 34(1-3), 1993: 35(1-3), 1994: 36(1-3), 1995: 37(1-3), 1996: 38(1-3), 1997: 39(1-3), 1998: 40(1-3), 1999: 41(1-3), 2000: 42(1-3), 2001: 43(1-3), 2002: 44(1-3), 2003: 45(1-3), 2004: 46(1-3), 2005: 47(1-3), 2006: 48(1-3), 2007: 49(1-4), 2008: 50(1-4), 2009: 51(1-4), 2010: 52(1-4), 2011: 53(1-4), 2012: 54(1-4), 2013: 55(1-4), 2014: 56(1-4), 2015: 57(1-4), 2016: 58(1-4), 2017: 59(1-4), 2018: 60(1-4), 2019: 61(1-4), 2020: 62(1-4), 2021: 63(1-4), 2022: 64(1-4), 2023: 65(1-4), 2024: 66(1-4), 2025: 67(1-4)
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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 : 4 (2, 3); 5 (1 to 4); 6 (1 to 4); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 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 3); 66 (1 to 4); 67 (1)
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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 : 1 (1-3); 2 (1-3); 3 (1-3); 4 (1-3); 5 (1-3); 6 (1-3); 7 (1-3); 8 (1-3); 9 (1-3); 10 (1-3); 11 (1-3); 12 (1-3); 13 (1-3); 14 (1-3); 15 (1-3); 16 (1-3); 17 (1-3); 18 (1-3); 19 (1-3); 20 (1-3); 21 (1-3); 22 (1-3); 23 (1-3); 24 (1-3); 25 (1-3); 26 (1-3); 27 (1-3); 28 (1-3); 29 (1-3); 30 (1-3); 31 (1-3); 32 (1-3); 33 (1-3); 34 (1-3); 35 (1-3); 36 (1-3); 37 (1-3); 38 (1-3); 39 (1-3); 40 (1-3); 41 (1-3); 42 (1-3); 43 (1-3); 44 (1-3); 45 (1-3); 46 (2, 3); 47 (1-3); 48 (1-3); 49 (1-4); 50 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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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)
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