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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 24 (1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 13); 28 (, 1 to 13); 29 (, 1 to 13); 30 (, 1 to 13); 31 (, 1 to 13); 32 (, 1 to 16); 33 (, 1 to 17); 34 (, 1 to 17); 35 (, 1 to 17); 36 (, 1 to 17); 37 (, 1 to 24); 38 (, 1 to 24); 39 (, 1, 10, 11); 40 (, 2, 5 to 24); 41 (, 1 to 24); 42 (, 1 to 24); 43 (, 1 to 24); 44 (, 1 to 24); 45 (, 1 to 24); 46 (, 1 to 24); 47 (, 1 to 11, 13 to 24); 48 (, 1 to 24); 49 (, 1 to 24); 50 (, 1 to 5); 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
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Internet Archive
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Preserved
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2025-08-08
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4 to 48
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 24(1-12), 1987: 25(1-12), 1988: 26(1-12), 1989: 27(1-13), 1990: 28(1-13), 1991: 29(1-13), 1992: 30(1-13), 1993: 31(1-13), 1994: 32(1-16), 1995: 33(1-17), 1996: 34(1-17), 1997: 35(1-17), 1998: 36(1-17), 1999: 37(1-24), 2000: 38(1-24), 2001: 39(1-24), 2002: 40(1-24), 2003: 41(1-24), 2004: 42(1-24), 2005: 43(1-24), 2006: 44(1-24), 2007: 45(1-24), 2008: 46(1-24), 2009: 47(1-24), 2010: 48(1-24), 2011: 49(1-24), 2012: 50(1-24), 2013: 51(1-24), 2014: 52(1-24), 2015: 53(1-24), 2016: 54(1-24), 2017: 55(1-24), 2018: 56(1-24), 2019: 57(1-24)
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CLOCKSS Archive
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Preserved
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2026-02-09
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29 to 47, 49 to 57
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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 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 17); 35 (1 to 9, 11 to 17); 36 (1 to 9, 11 to 17); 37 (1 to 9, 11 to 19, 21 to 24); 38 (1 to 9, 11 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 24); 43 (1 to 9, 11 to 19, 21 to 24); 44 (1 to 9, 11 to 19, 21 to 24); 45 (1 to 9, 11 to 19, 21 to 24); 46 (1 to 9, 11 to 19, 21 to 24); 47 (1 to 9, 11 to 19, 21 to 24); 48 (1 to 9, 11 to 19, 21 to 24); 49 (1 to 9, 11 to 19, 21 to 24); 51 (1 to 9, 11 to 19, 21 to 24); 52 (1 to 9, 11 to 19, 21 to 24); 53 (1 to 9, 11 to 19, 21 to 24); 54 (1 to 9, 11 to 19, 21 to 24); 55 (1 to 9, 11 to 19, 21 to 24); 56 (1 to 9, 11 to 19, 21 to 24); 57 (1 to 9, 11 to 19, 21 to 24)
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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 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 17); 35 (1 to 9, 11 to 17); 36 (1 to 9, 11 to 17); 37 (1 to 9, 11 to 19, 21 to 24); 38 (1 to 9, 11 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 24); 43 (1 to 9, 11 to 19, 21 to 24); 44 (1 to 9, 11 to 19, 21 to 24); 45 (1 to 9, 11 to 19, 21 to 24); 46 (1 to 9, 11 to 19, 21 to 24); 47 (1 to 9, 11 to 19, 21 to 24); 48 (1 to 9, 11 to 19, 21 to 24); 49 (1 to 9, 11 to 19, 21 to 24); 51 (1 to 9, 11 to 19, 21 to 24); 52 (1 to 9, 11 to 19, 21 to 24); 53 (1 to 9, 11 to 19, 21 to 24); 54 (1 to 9, 11 to 19, 21 to 24); 55 (1 to 9, 11 to 19, 21 to 24); 56 (1 to 9, 11 to 19, 21 to 24); 57 (1 to 9, 11 to 19, 21 to 24)
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