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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); 4 (, 1); 5 (, 1); 6 (, 1); 7 (, 1); 8 (, 1); 9 (, 1); 10 (, 1 to 5); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 9); 15 (, 1 to 9); 16 (, 1 to 12); 17 (, 1 to 15); 18 (, 1 to 15); 20 (, 1 to 18); 21 (, 1 to 18); 22 (, 14); 23 (, 1); 24 (, 1 to 16, 17-18); 25 (, 2 to 15, 16-18); 26 (, 1 to 18); 27 (, 1 to 18); 28 (, 1 to 18); 29 (, 1 to 18); 30 (, 1 to 18); 31 (, 1 to 18); 32 (, 1 to 18); 33 (, 1 to 18); 34 (, 1 to 18); 35 (, 1, 8 to 18); 36 (, 1 to 18); 37 (, 1 to 18); 38 (, 1 to 18); 39 (, 1 to 18); 40 (, 1 to 18); 41 (, 1, 3 to 18); 42 (, 1 to 18); 43 (, 1 to 18); 44 (, 1 to 18); 45 (, 1 to 18); 46 (, 1 to 18); 47 (, 1 to 18); 48 (, 1 to 12); 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 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; 2025
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Internet Archive
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Preserved
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2025-08-08
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8 to 25
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 9, 14 to 49
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 6(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 10(1-5), 1989: 11(1-6), 1990: 12(1-6), 1990: 13(1-6), 1991: 14(1-9), 1992: 15(1-9), 1993: 16(1-12), 1994: 17(1-15), 1995: 18(1-15), 1996: 19(1-18), 1997: 20(1-18), 1998: 21(1-18), 1999: 22(1-18), 2000: 23(1-18), 2001: 24(1-18), 2002: 25(1-18), 2003: 26(1-18), 2004: 27(1-18), 2005: 28(1-18), 2006: 29(1-18), 2007: 30(1-18), 2008: 31(1-18), 2009: 32(1-18), 2010: 33(1-18), 2011: 34(1-18), 2012: 35(1-18), 2013: 36(1-18), 2014: 37(1-18), 2015: 38(1-18), 2016: 39(1-18), 2017: 40(1-18), 2018: 41(1-18), 2019: 42(1-18), 2020: 43(1-18), 2021: 44(1-18), 2022: 45(1-18), 2023: 46(1-18), 2024: 47(1-18), 2025: 48(1-18), 2026: 49(1-4)
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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 : 2 (1 to 9, 11 to 18); 3 (1 to 9, 11 to 18); 4 (1 to 9, 11 to 18); 19 (1 to 9, 11 to 18); 21 (1 to 9, 11 to 18); 22 (1 to 9, 11 to 18); 23 (1 to 9, 11 to 18); 24 (1 to 9, 11 to 16, 17?18); 25 (1 to 9, 11 to 15, 16?18); 26 (1 to 9, 11 to 18); 27 (1 to 9, 11 to 18); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 9, 11 to 18); 38 (1 to 9, 11 to 18); 39 (1 to 9, 11 to 18); 41 (1 to 9, 11 to 18); 42 (1 to 9, 11 to 18); 43 (1 to 9, 11, 12, 14 to 18); 44 (1 to 9, 11 to 18); 45 (1 to 9, 11 to 18); 46 (1 to 9, 11 to 18); 47 (1 to 4, 6 to 9, 11 to 18); 48 (1 to 9, 11 to 15)
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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 : 2 (1 to 9, 11 to 18); 3 (1 to 9, 11 to 18); 4 (1 to 9, 11 to 18); 19 (1 to 9, 11 to 18); 21 (1 to 9, 11 to 18); 22 (1 to 9, 11 to 18); 23 (1 to 9, 11 to 18); 24 (1 to 9, 11 to 16, 17?18); 25 (1 to 9, 11 to 15, 16?18); 26 (1 to 9, 11 to 18); 27 (1 to 9, 11 to 18); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 9, 11 to 18); 38 (1 to 9, 11 to 18); 39 (1 to 9, 11 to 18); 41 (1 to 9, 11 to 18); 42 (1 to 9, 11 to 18); 43 (1 to 9, 11, 12, 14 to 18); 44 (1 to 9, 11 to 18); 45 (1 to 9, 11 to 18); 46 (1 to 9, 11 to 18); 47 (1 to 4, 6 to 9, 11 to 18); 48 (1 to 9, 11 to 16)
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