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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 4); 2 (, 5 to 8); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 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 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); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 3); 53 (, 1, 2, 4); 54 (, 1 to 4); 55 (, 2 to 4); 56 (, 1, 4); 57 (, 1 to 4); 58 (, 1, 2, 4); 59 (, 1, 2); 60 (, 1); 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; 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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1 to 48
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Portico
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Preserved
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2026-02-12
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Preserved : 1966: 1(1-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1968: 3(2-3), 1969: 4(1-3), 1970: 5(1-3), 1971: 6(1-3), 1972: 7(1-3), 1973: 8(1-3), 1974: 9(1-3), 1975: 10(1-3), 1976: 11(1-3), 1977: 12(1-3), 1978: 13(1-3), 1979: 14(1-3), 1980: 15(1-3), 1981: 16(1-3), 1982: 17(1-3), 1983: 18(1-3), 1984: 19(1-3), 1985: 20(1-3), 1986: 21(1-3), 1987: 22(1-3), 1988: 23(1-3), 1989: 24(1-4), 1990: 25(1-4), 1991: 26(1-4), 1992: 27(1-4), 1993: 28(1-4), 1994: 29(1-4), 1995: 30(1-4), 1996: 31(1-4), 1997: 32(1-4), 1998: 33(1-4), 1999: 34(1-4), 2000: 35(1-4), 2001: 36(2-4), 2002: 37(1, 3-4), 2003: 38(1-4), 2004: 39(1-4), 2005: 40(1-4), 2006: 41(1-4), 2007: 42(1-4), 2008: 43(1-4), 2009: 44(1-4), 2010: 45(1-4), 2011: 46(1-4), 2012: 47(1-4), 2013: 48(1-4), 2014: 49(1-4), 2015: 50(1-4), 2016: 51(1-4), 2017: 52(1-4), 2018: 53(1-4), 2019: 54(1-4), 2020: 55(1-4), 2021: 56(1-4), 2022: 57(1-4), 2023: 58(1-4), 2024: 59(1-4), 2025: 60(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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40 to 59
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CLOCKSS Archive
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Preserved
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2026-02-09
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43 to 50, 52
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CLOCKSS Archive
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In Progress
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2026-02-09
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51, 53 to 60
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LOCKSS Archive
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In Progress
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2026-02-09
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60
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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 4); 6 (1 to 3); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (suppl_1, 1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (suppl_1, 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, 3, 4); 59 (1 to 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 : 5 (1 to 4); 6 (1 to 3); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (suppl_1, 1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (suppl_1, 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, 3, 4); 59 (1 to 4)
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British Library
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Preserved
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2019-09-18
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Preserved : 49 (1 to 4), 50 (1 to 4), 51 (1; 3 to 4), 52 (1 to 2), 53 (3 to 4)
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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 (1-4); 2 (5-8); 3 (1-4); 4 (1-4); 5 (1-4); 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 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 28 (1-4); 29 (1-4); 30 (1-4)
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