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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 8 (1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 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 to 4); 29 (, 1 to 4); 30 (, 1 to 5); 31 (, 1 to 5); 32 (, 1 to 5); 33 (, 1 to 5); 34 (, 1 to 5); 35 (, 1 to 5); 36 (, 1 to 5); 37 (, 1 to 5); 38 (, 1 to 5); 39 (, 1 to 5); 40 (, 1 to 5); 41 (, 1 to 5); 42 (, 1 to 4, 5-6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 2 to 6); 50 (, 1 to 3); 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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Internet Archive
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Preserved
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2025-08-08
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1 to 38
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 50
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 30(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007/2008: 32(2, 4-5), 2008/2009: 33(2-5), 2009: 34(1-5), 2010: 35(1-5), 2011: 36(1-5), 2012: 37(2-5), 2013: 38(1-4), 2014: 39(1-4), 2015: 40(2-5), 2016: 41(1-5), 2017: 42(1-6), 2018: 43(1-6), 2019: 44(1-6), 2019/2020: 45(1-6), 2021: 46(1-6), 2022: 47(1-6), 2023: 48(1-6), 2024: 49(1-6), 2025: 50(1-6)
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LOCKSS Archive
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In Progress
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2026-02-09
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37, 44
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LOCKSS Archive
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Preserved
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2026-02-09
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38 to 43
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Library of Congress
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Preserved
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2025-04-07
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43 (2 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 5)
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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 5); 4 (1 to 5); 21 (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 to 4); 29 (1 to 4); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 5); 38 (1 to 5); 39 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6)
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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 5); 4 (1 to 5); 21 (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 to 4); 29 (1 to 4); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 5); 38 (1 to 5); 39 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6)
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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 : 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-3, 5); 31 (1, 2, 4, 5); 32 (2-5); 33 (1-5); 34 (1-5); 35 (1-5); 36 (1-5); 37 (1-5); 38 (1-5); 39 (1-5); 40 (1-5); 41 (1-5); 42 (1-4, 5-6); 43 (1-6); 44 (1-5)
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