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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 to 4); 7 (, 1); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 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 (, 2 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 5); 42 (, 1 to 3, 5, 6); 43 (, 1, 2); 48 (, 1, 2); 1977; 1978; 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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29 to 48
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CLOCKSS Archive
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Preserved
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2026-02-09
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32 to 39, 41
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 32(1, 3-6), 2009: 33(1-6), 2009/2010: 34(1-6), 2010/2011: 35(1-6), 2012: 36(1-6), 2012/2013: 37(1-6), 2013/2014: 38(1-6), 2014/2015: 39(1-6), 2014/2015/2016: 40(1-6), 2016/2017: 41(1-6), 2018: 42(1-6), 2019: 43(1-6), 2020: 44(1-6), 2021: 45(1-6), 2022: 46(1-6), 2023: 47(1-6), 2024: 48(1-6), 2025: 49(1-6)
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CLOCKSS Archive
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In Progress
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2026-02-09
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40, 42 to 49
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LOCKSS Archive
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In Progress
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2026-02-09
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49
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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); 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 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 5); 49 (1 to 3)
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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); 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 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 5); 49 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-4); 2 (2, 3); 3 (4); 4 (3, 4); 5 (2-4); 6 (2-4); 8 (1, 4); 9 (1, 3, 4); 10; 11 (2-4); 12 (1, 2, 4); 13 (1, 3, 4); 14 (2-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-6); 19 (1, 3-6)
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