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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 17 (1, 2, 3-4); 18 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 5); 67 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020
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CLOCKSS Archive
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Preserved
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2026-02-09
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17, 18, 52 to 67, 70 to 72
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LOCKSS Archive
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In Progress
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2026-02-09
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17, 18, 52 to 67, 70 to 72
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 64(3), 2014: 66(4), 2018: 70(1-4), 2019: 71(1-4), 2020: 72(1-4)
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Library of Congress
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Preserved
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2025-04-07
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70 (2 to 4); 71 (1 to 4); 72 (1 to 4)
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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 : 2 (1); 17 (2); 18 (1-4); 52 (1, 4); 53; 54 (2, 4); 55 (2, 4); 56 (1-4); 57 (1, 4); 58 (2); 59 (1-4); 60 (1, 2, 4); 61 (2-4); 62 (1-4); 63 (supplement-3, 1-4); 64 (1-4); 65 (supplement-4, 1, 2); 66 (supplement-5); 67 (1, 3, 4); 70 (1-3); 71 (1-3)
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