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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 6); 2 (, 1, 2-3, 4 to 6); 3 (, 1 to 6); 4 (, 1, 2-3, 4 to 6); 5 (, 1-2, 3-4, 5, 6); 6 (, 1 to 3, 4-5, 6); 7 (, 1 to 6); 8 (, 1 to 3); 9 (, 1-2); 10 (, 1-2); 11 (, 1-2); 12 (, 1-2); 13 (, 1-2); 14 (, 1-2); 15 (, 1-2); 16 (, 1-2); 17 (, 1-2); 18 (, 1-2); 19 (, 1-2); 20 (, 1-2); 21 (, 1-2); 22 (, 1-2); 23 (, 1-2); 24 (, 1-2); 25 (, 1-2); 26 (, 1-2); 27 (, 1-2); 28 (, 1-2); 29 (, 1-2); 30 (, 1-2); 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, 2); 40 (, 1, 2); 41 (, 1, 2); 42 (, 1, 2); 43 (, 1, 2); 44 (, 1, 2); 45 (, 1, 2); 46 (, 1, 2); 47 (, 1, 2); 48 (, 1, 2); 49 (, 1, 2); 50 (, 1, 2); 51 (, 1, 2); 52 (, 1, 2); 53 (, 1, 2); 54 (, 1, 2); 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 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; 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
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Portico
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Preserved
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2026-02-12
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Preserved : 1949/1950/1951/1952: 1(1-6), 1952/1953/1954: 2(1-6), 1954/1955/1956/1957/1958: 3(1-6), 1960/1961/1962/1963: 4(1-6), 1963/1964/1965: 5(1-6), 1965/1966/1967: 6(1-6), 1967/1968/1969: 7(1-6), 1969/1970/1971: 8(1-3), 1971: 9(1-2), 1972: 10(1-2), 1973: 11(1-2), 1974: 12(1-2), 1975: 13(1-2), 1976: 14(1-2), 1977: 15(1-2), 1978: 16(1-2), 1979: 17(1-2), 1980: 18(1-2), 1981: 19(1-2), 1982: 20(1-2), 1983: 21(1-2), 1984: 22(1-2), 1985: 23(1-2), 1985: 24(1-2), 1987: 25(1-2), 1988: 26(1-2), 1989: 27(1-2), 1990: 28(1-2), 1991: 29(1-2), 1992: 30(1-2), 1993: 31(1-2), 1994: 32(1-2), 1995: 33(1-2), 1996: 34(1-2), 1997: 35(1-2), 1998: 36(1-2), 1999: 37(1-2), 2000: 38(1-2), 2001: 39(1-2), 2002: 40(1-2), 2003: 41(1-2), 2004: 42(1-2), 2005: 43(1-2), 2006: 44(1-2), 2007: 45(1-2), 2008: 46(1-2), 2009: 47(1-2), 2010: 48(1-2), 2011: 49(1-2), 2012: 50(1-2), 2013: 51(1-2), 2014: 52(1-2), 2015: 53(1-2), 2016: 54(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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35 to 54
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LOCKSS Archive
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In Progress
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2026-02-09
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50
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LOCKSS Archive
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Preserved
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2026-02-09
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51 to 54
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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 : 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 50 (1, 2); 51 (1, 2); 52 (1, 2); 53 (1, 2); 54 (1, 2)
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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 : 4 (1, 2); 5 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 51 (1, 2); 52 (1, 2); 53 (1, 2); 54 (1, 2)
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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 (1, 2); 5 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 51 (1, 2); 52 (1, 2); 53 (1, 2); 54 (1, 2)
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