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Internet Archive
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Preserved
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2025-08-08
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13 to 25
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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 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1); 10 (, 1); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 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); 40 (, 1 to 6); 41 (, 1, 2); 46 (, 1 to 3); 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; 2023; 2024
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LOCKSS Archive
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Preserved
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2026-02-09
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28 to 46
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CLOCKSS Archive
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Preserved
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2026-02-09
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30 to 34, 36, 37
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CLOCKSS Archive
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In Progress
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2026-02-09
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35, 35, 38 to 47
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LOCKSS Archive
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In Progress
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2026-02-09
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47
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 2(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 3(2-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 4(1-4), 1983: 5(1-4), 1984: 6(1-4), 1985: 7(1-4), 1986: 8(1-4), 1987: 9(1-4), 1988: 10(1-4), 1989: 11(1-4), 1990: 12(1-4), 1991: 13(1-5), 1992: 14(1-5), 1993: 15(1-5), 1994: 16(1-5), 1995: 17(1-5), 1996: 18(1-5), 1997: 19(1-5), 1998: 20(1, 3-5), 1999: 21(2-3, 5), 2000: 22(1, 5), 2001: 23(1, 3-5), 2002: 24(1-5), 2003: 25(1, 3-5), 2004: 26(1-4), 2005: 27(1-5), 2006: 28(1-5), 2007: 29(1-5), 2008: 30(1-6), 2009: 31(1-6), 2009/2010: 32(1-6), 2010/2011: 33(1-6), 2011/2012: 34(1-6), 2011/2012/2013: 35(1-6), 2011/2013/2014: 36(1-6), 2012/2014/2015: 37(1-6), 2015/2016: 38(1-6), 2015/2017: 39(1-6), 2018: 40(1-6), 2019: 41(1-6), 2020: 42(1-6), 2021: 43(1-6), 2022: 44(1-6), 2023: 45(1-6), 2024: 46(1-6), 2025: 47(1-6), 2026: 48(1)
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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 : ; 3 (1 to 6); 4 (1 to 6); 28 (1 to 6); 29 (suppl_1, 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); 41 (1 to 4, 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6, 9); 45 (2, 4 to 6); 46 (1 to 6); 47 (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 : ; 3 (1 to 6); 4 (1 to 6); 28 (1 to 6); 29 (suppl_1, 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); 41 (1 to 4, 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6, 9); 45 (2, 4 to 6); 46 (1 to 6); 47 (1 to 6)
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British Library
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Preserved
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2019-09-18
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Preserved : 36 (1 to 3; 6), 37 (1 to 6), 38 (1 to 6), 39 (1 to 2), 40 (3 to 6), 41 (1)
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