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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 (, 1 to 4); 3 (, 1, 2 to 4); 4 (, 1, 2_Part_1, 4); 5 (, 1_Part_1, 2, 4); 6 (, 1, 2 to 4); 7 (, 1, 3_Part_2, 4); 8 (, 1_Part_2, 2, 4); 9 (, 1, 3_Part_2); 10 (, 2, 4_Part_2); 11 (, 1_Part_2); 12 (, 3_Part_2, 4); 13 (, 1, 2 to 4); 14 (, 1 to 4 to 6); 15 (, 2 to 4 to 6); 16 (, 1_Part_2, 2 to 6); 17 (, 1 to 4 to 6); 18 (, 1 to 4 to 6); 19 (, 1 to 4 to 6); 20 (, 1, 2 to 4, 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 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); 42 (, 2, 3); 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 3, 5, 6); 59 (, 1, 2, 5, 6); 60 (, 1 to 8); 61 (, 1, 3 to 8); 62 (, 1 to 10); 63 (, 1 to 6, 8, 9); 64 (, 1 to 7, 10 to 12); 65 (, 1 to 3); 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; 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 54
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 21(1-5, Special Issue ial_Issue), 1982: 22(1-5), 1983: 23(1-5), 1984: 24(1-5), 1985: 25(1-5), 1986: 26(1-5), 1987: 27(1-5), 1988: 28(1-5, S), 1989: 29(1-5), 1990: 30(1-5), 1991: 31(1-5), 1992: 32(1-5), 1993: 33(1-5), 1994: 34(1-5), 1995: 35(1-5), 1996: 36(1-5), 1997: 37(1-5), 1998: 38(1-5), 1999: 39(1-5), 2000: 40(1-6, Special Issue ial_Issue_I), 2001: 41(1-5), 2002: 42(1, Special Issue ial_Issue_1, 2-6), 2003: 43(1-5), 2004: 44(1-6), 2005: 45(1-5), 2006: 46(1-6), 2007: 47(1-6), 2008: 48(1-6), 2009: 49(1, S 1, 2-6), 2010: 50(1-6), 2010/2011: 51(1-6), 2012: 52(1, S 1, 2-6), 2012/2013: 53(1, S 1, 2-6), 2013/2014: 54(1-6), 2014/2015: 55(1-6), 2014/2015/2016: 56(1-6), 2017: 57(1-6), 2018: 58(1-6), 2019: 59(1-6), 2020: 60(1-8), 2021: 61(1-8), 2022: 62(1-10), 2023: 63(1-10), 2024: 64(1-12), 2025: 65(1-12), 2026: 66(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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48, 50 to 64
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CLOCKSS Archive
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In Progress
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2026-02-09
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48, 56 to 65
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CLOCKSS Archive
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Preserved
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2026-02-09
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49 to 55
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LOCKSS Archive
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In Progress
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2026-02-09
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65
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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 (6); 5 (suppl_1, 1 to 6); 6 (Supplement_1, 1 to 8); 42 (Special_Issue_1); 44 (1); 47 (5); 49 (S1, 1 to 6); 51 (suppl_1, 1 to 6); 52 (S1, 1 to 6); 53 (S1, 1 to 6); 54 (Suppl_1, 1 to 6); 55 (Suppl_1, 1 to 6); 56 (Suppl_1, 1 to 6); 57 (suppl_1, 1 to 6); 58 (suppl_1, 1 to 6); 59 (Supplement_1, 1 to 6); 61 (1 to 8); 62 (1 to 9); 63 (1 to 3, 5 to 9); 64 (1 to 9, 11, 12); 65 (1 to 8)
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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 (6); 5 (suppl_1, 1 to 6); 6 (Supplement_1, 1 to 8); 42 (Special_Issue_1); 44 (1); 47 (5); 49 (S1, 1 to 6); 51 (suppl_1, 1 to 6); 52 (S1, 1 to 6); 53 (S1, 1 to 6); 54 (Suppl_1, 1 to 6); 55 (Suppl_1, 1 to 6); 56 (Suppl_1, 1 to 6); 57 (suppl_1, 1 to 6); 58 (suppl_1, 1 to 6); 59 (Supplement_1, 1 to 6); 61 (1 to 8); 62 (1 to 9); 63 (1 to 3, 5 to 9); 64 (1 to 9, 11, 12); 65 (1 to 9, 11)
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British Library
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Preserved
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2019-09-18
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Preserved : 54 (1 to 4; 6; S2), 55 (1 to 5; S1), 56 (1 to 5; S1 to S2; S 3), 57 (1 to 2), 58 (1; 3 to 6), 59 (2)
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