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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, 3-4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1, 2, 3-4); 7 (, 1, 2, 3-4); 8 (, 1, 2-3, 4); 9 (, 1-2, 3-4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 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 8); 26 (, 1 to 8); 27 (, 1 to 8); 28 (, 1 to 8); 29 (, 1 to 8); 30 (, 1 to 8); 31 (, 1 to 8, 9-10); 32 (, 1-2, 3-4, 5 to 10); 33 (, 1, 2, 3-4, 5 to 7, 8-9, 10); 34 (, 1 to 10); 35 (, 1 to 10); 36 (, 1 to 10); 37 (, 1 to 10); 38 (, 1 to 8, 9-10); 39 (, 1 to 3, 4-5, 6 to 10); 40 (, 1 to 10); 41 (, 1 to 10); 42 (, 1 to 7, 8-10); 43 (, 1 to 3, 4-5, 6-7, 8, 9-10); 44 (, 1 to 3, 4-5, 6, 7, 8-9, 10); 45 (, 1-2, 3-4, 5-6, 7, 8, 9-10); 46 (, 1-2, 3-4, 5 to 10); 47 (, 1 to 10); 48 (, 1 to 3, 4-6, 7-8, 9-10); 49 (, 1); 50 (, 1); 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; 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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10 to 21
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Portico
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Preserved
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2026-02-12
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Preserved : 2009: 35(2, 5, 8-10), 2010: 36(1-10), 2011: 37(1-10), 2012: 38(1-10), 2013: 39(1-10), 2014: 40(1-6, 8-10), 2015: 41(1-6)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 50
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 51
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LOCKSS Archive
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In Progress
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2026-02-09
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51
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 6(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 14(sup1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 20(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 23(1-6), 1998: 24(1-6), 1999: 25(1-8), 2000: 26(1-8), 2001: 27(1-8), 2002: 28(1-8), 2003: 29(1-8), 2004: 30(1-8), 2004/2005: 31(1-10), 2006: 32(1-10), 2007: 33(1-10), 2008: 34(1-10), 2009: 35(1-10), 2010: 36(1-10), 2011: 37(1-10), 2012: 38(1-10), 2013: 39(1-10), 2014: 40(1-10), 2015: 41(1-10), 2016: 42(1-10), 2017: 43(1-10), 2018: 44(1-10), 2019: 45(1-10), 2020: 46(1-10), 2020/2021: 47(1-10), 2022: 48(1-10), 2023: 49(1), 2024: 50(1), 2025: 51(1), 2026: 52(1)
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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 (sup1, 1 to 8); 4 (1 to 9); 5 (1); 23 (2 to 6); 24 (1 to 6); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (sup1, 1 to 8, 9-1); 32 (1-2, 3-4, 5 to 9); 33 (1, 2, 3-4, 5 to 7, 8-9); 34 (1 to 9); 35 (1 to 9); 36 (1 to 9); 37 (1 to 9); 38 (1 to 8, 9-1); 39 (1 to 3, 4-5, 6 to 9); 41 (1 to 9); 42 (1 to 7, 8-1); 43 (1 to 3, 4-5, 6-7, 8, 9-1); 44 (1 to 3, 4-5, 6, 7, 8-9); 45 (1-2, 3-4, 5-6, 7, 8, 9-1); 46 (1-2, 3-4, 5 to 9); 47 (1 to 9); 48 (1 to 3, 4-6, 7-8, 9-1); 49 (1)
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