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Internet Archive
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Preserved
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2025-08-08
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3 to 8
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 3 (1); 4 (, 1); 6 (, 3); 7 (, 4); 26 (, 1 to 3); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 3); 32 (, 1 to 3); 33 (, 1 to 3); 34 (, 1 to 3); 35 (, 1 to 3); 36 (, 1 to 3); 37 (, 1 to 3); 38 (, 1 to 3); 39 (, 1-2, 3-4); 40 (, 1-2, 3, 4); 41 (, 1, 2, 3-4); 42 (, 1 to 4); 43 (, 1-2, 3-4); 44 (, 1, 2, 3-4); 45 (, 1-2, 3, 4); 46 (, 1-2); 1970; 1980; 1982; 1983; 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, 4, 6, 7, 15 to 45
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CLOCKSS Archive
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Preserved
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2026-02-09
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1, 4, 6, 7, 15 to 46
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LOCKSS Archive
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In Progress
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2026-02-09
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46
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Portico
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Preserved
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2026-02-12
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Preserved : 1970/1979: 3(1, sup1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 5(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1984: 8(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 2018: 39(1-4), 2019: 40(1-4), 2020: 41(1-4), 2021: 42(1-4), 2022: 43(1-4), 2023: 44(1-4), 2024: 45(1-4), 2025: 46(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 : 3 (1 to 4); 4 (1-2, 3, 4); 21 (1); 22; 23 (2); 24 (1 to 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1-2, 3-4); 41 (1, 2, 3-4); 42 (1 to 4); 43 (1-2, 3-4); 44 (1, 2, 3-4); 45 (1-2, 3, 4)
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Library of Congress
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Preserved
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2025-04-07
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31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1-2, 3-4); 40 (1-2, 3, 4); 41 (1 to 3-4); 42 (1 to 4); 43 (1-2, 3-4); 44 (1 to 3-4); 45 (1-2, 3)
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