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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 11 (2-3); 12 (, 3); 49 (, 1-2); 50 (, 2-3); 53 (, 1-2); 65 (, 1); 68 (, 3, 4, 5-6); 69 (, 1 to 6); 70 (, 1, 2, 3-4, 5, 6); 71 (, 1-2, 3 to 8); 72 (, 1 to 3, 4-5, 6 to 8); 73 (, 1-2, 3 to 8); 74 (, 1 to 8); 75 (, 1, 3, 4); 76 (, 1 to 3, 4-5, 6 to 8); 77 (, 1 to 8); 78 (, 1-2, 3, 4, 7, 8); 79 (, 1 to 5, 8); 80 (, 1 to 8); 81 (, 1 to 5, 6-8); 82 (, 1 to 8); 83 (, 1 to 8); 84 (, 1 to 6, 7-8); 85 (, 1, 2, 3-4, 5 to 8); 86 (, 1 to 8); 87 (, 1 to 4); 1965; 1966; 1992; 1994; 2003; 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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47 to 69
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Portico
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Preserved
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2026-02-12
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Preserved : 1961: 7(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1965: 11(2-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1966: 12(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 49(1-2), 1992: 50(2-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 53(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 64(4), 2003: 65(1-6), 2004: 66(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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67 to 86
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CLOCKSS Archive
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In Progress
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2026-02-09
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68, 79 to 81, 83 to 87
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Portico
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Preserved
|
2026-02-12
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Preserved : 2006: 68(1-6), 2007: 69(1-6), 2008: 70(1-6), 2009: 71(1-8), 2010: 72(1-8), 2011: 73(1-8), 2012: 74(1-8), 2013: 75(1-8), 2014: 76(1-8), 2015: 77(1-8), 2016: 78(1-8), 2017: 79(1-8), 2018: 80(1-8), 2019: 81(1-8), 2020: 82(1-8), 2021: 83(1-8), 2022: 84(1-8), 2023: 85(1-8), 2024: 86(1-8), 2025: 87(1-8)
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CLOCKSS Archive
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Preserved
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2026-02-09
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69 to 78, 82
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LOCKSS Archive
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In Progress
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2026-02-09
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87
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Library of Congress
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Preserved
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2025-04-07
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72 (1 to 4-5, 6 to 8); 73 (1-2, 3 to 8); 74 (1 to 8); 75 (1 to 5-6, 7, 8); 76 (1 to 4-5, 6 to 8); 77 (1 to 8); 78 (1-2, 3 to 8); 79 (1 to 6-7, 8); 80 (1 to 8); 81 (1 to 6-8); 82 (1 to 8); 83 (1 to 8); 84 (1 to 7-8); 85 (1 to 3-4, 5 to 8); 86 (1 to 8)
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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 : 11 (2-3); 12 (3); 49 (1-2); 50 (2-3); 53 (1-2); 65; 68 (2-4, 5-6); 69 (1-6); 70 (1, 2, 3-4, 5, 6); 71 (3-8); 72 (1-3, 4-5, 6-8); 73 (1-2, 3-5, 7, 8); 74 (1-8); 75 (1-4, 5-6, 7, 8); 76 (1-3, 4-5, 6-8); 77 (1-8); 78 (1-2, 3-8); 79 (1-5, 6-7, 8); 80 (1-8); 81 (1-5, 6-8)
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British Library
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Preserved
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2019-09-18
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Preserved : 76 (1 to 3; 6 to 8), 77 (1 to 2; 4 to 8), 78 (3 to 8), 79 (1 to 5; 8), 80 (1 to 7)
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