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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 21 (1 to 24); 22 (, 1 to 24); 23 (, 1 to 24); 24 (, 1 to 24); 25 (, 1 to 24); 26 (, 1 to 24); 27 (, 1 to 24); 28 (, 1 to 24); 29 (, 1 to 24); 30 (, 1 to 24); 31 (, 1 to 24); 32 (, 1 to 24); 33 (, 1 to 24); 34 (, 1 to 24); 35 (, 1 to 24); 36 (, 1 to 24); 37 (, 1 to 24); 38 (, 1 to 24); 39 (, 1 to 24); 40 (, 1 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 24); 48 (, 1 to 24); 49 (, 1 to 24); 50 (, 1 to 24); 51 (, 1 to 24); 52 (, 1 to 24); 53 (, 1 to 24); 54 (, 1 to 24); 55 (, 1 to 24); 56 (, 1); 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; 2020; 2021; 2022; 2023
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CLOCKSS Archive
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Preserved
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2026-02-09
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41 to 59
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 21(1-24), 1989: 22(1-24), 1990: 23(1-24), 1991: 24(1-24), 1992: 25(1-24), 1993: 26(1-24), 1994: 27(1-24), 1995: 28(1-24), 1996: 29(1-24), 1997: 30(1-24), 1998: 31(1-24), 1999: 32(1-24), 2000: 33(1-24), 2001: 34(1-24), 2002: 35(1-24), 2003: 36(17-24), 2004: 37(1-24), 2005: 38(1-24), 2006: 39(1-24), 2007: 40(1-24), 2008: 41(1-24), 2009: 42(1-24), 2010: 43(1-24), 2011: 44(1-24), 2011/2012: 45(1-8, 10-24), 2012/2013: 46(1-24), 2013/2014: 47(1-24), 2015: 48(1-24), 2015/2016: 49(1-24), 2016/2017: 50(1-24), 2017/2018: 51(1-24), 2019: 52(1-24), 2020: 53(1-24), 2020/2021: 54(1-24), 2022: 55(1-24), 2023: 56(1-24), 2024: 57(1-24), 2025: 58(1-24), 2026: 59(1-3)
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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); 31 (1 to 9, 11 to 19, 21 to 24); 32 (1 to 9, 11 to 19, 21 to 24); 33 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 19, 21 to 24); 35 (1 to 9, 11 to 19, 21 to 24); 36 (1 to 9, 11 to 19, 21 to 24); 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); 58 (1 to 9, 11 to 16)
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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); 31 (1 to 9, 11 to 19, 21 to 24); 32 (1 to 9, 11 to 19, 21 to 24); 33 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 19, 21 to 24); 35 (1 to 9, 11 to 19, 21 to 24); 36 (1 to 9, 11 to 19, 21 to 24); 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); 58 (1 to 9, 11 to 19, 21)
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