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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); 2 (, 1 to 3); 3 (, 1); 4 (, 1, 2); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 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 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1, 2, 3-4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 1, 2); 32 (, 1, 2); 33 (, 1, 2); 34 (, 1, 2); 35 (, 1, 2); 36 (, 1, 2); 37 (, 1); 38 (, 1 to 3); 39 (, 1 to 3); 40 (, 1 to 3); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1); 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; 2025
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 44
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 45
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LOCKSS Archive
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In Progress
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2026-02-09
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45
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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 31(1-2), 2012: 32(1-2), 2013: 33(1-2), 2014: 34(1-2), 2015: 35(1-2), 2016: 36(1-2), 2017: 37(1-2), 2018: 38(1-3), 2019: 39(1-3), 2020: 40(1-3), 2021: 41(1-3), 2022: 42(1-3), 2023: 43(1, sup1, 1, 2-3), 2024: 44(1-2), 2025: 45(1-4)
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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 (2 to 4); 3 (1, 2); 4 (1 to 3); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1, 2, 3-4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1, 2); 29 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (sup1, 1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (sup1, 1 to 3); 44 (1 to 3)
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Library of Congress
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Preserved
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2025-04-07
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30 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (sup1, 1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (sup1, 1 to 3); 44 (1 to 3)
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