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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 61 (1, 2-3, 4 to 6); 62 (, 1 to 3, 4-5, 6); 63 (, 1, 2-3, 4 to 6); 64 (, 1-2, 3, 4-5, 6); 65 (, 1 to 6); 66 (, 1 to 4, 5-6); 67 (, 1 to 6); 68 (, 1 to 6); 69 (, 1 to 10); 70 (, 1 to 10); 71 (, 1 to 12); 72 (, 1 to 12); 73 (, 1 to 12); 74 (, 1 to 12); 75 (, 1 to 12); 76 (, 1 to 12); 77 (, 1 to 12); 78 (, 1 to 8); 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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CLOCKSS Archive
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Preserved
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2026-02-09
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61 to 79
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 61(1-6), 2009: 62(1-6), 2010: 63(1-6), 2011: 64(1-6), 2012: 65(1-6), 2013: 66(1-6), 2014: 67(1-6), 2015: 68(1-6), 2016: 69(1-10), 2017: 70(1-10), 2018: 71(1-12), 2019: 72(1-12), 2019/2020: 73(1-12), 2021: 74(1-12), 2022: 75(1-12), 2023: 76(1-12), 2024: 77(1-11), 2025: 78(1-2, 4-12), 2025/2026: 79(1-3)
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LOCKSS Archive
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In Progress
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2026-02-09
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65, 72
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LOCKSS Archive
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Preserved
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2026-02-09
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66 to 71
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Library of Congress
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Preserved
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2025-04-07
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71 (3 to 12); 72 (1 to 12); 73 (1 to 12); 74 (1 to 12); 75 (1 to 12); 76 (1 to 12); 77 (1 to 10); 78 (2)
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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 : 4; 61 (1, 2-3, 4-6); 62 (1-3, 4-5, 6); 63 (1, 2-3, 4-6); 64 (1-2, 3, 4-5, 6); 65 (1-6); 66 (1-4, 5-6); 67 (1-6); 68 (supplement-1, 1-6); 69 (1-10); 70 (1-10); 71 (1-12); 72 (1-11)
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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 : 62 (1 to 4, 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 : 62 (1 to 4, 6)
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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 : 7 (1 to 9); 63 (1, 2, 4 to 6); 64 (1, 3, 4-5, 6); 65 (1 to 6); 66 (1 to 5); 67 (1 to 6); 68 (Suppl 2, 1 to 6); 69 (1 to 9); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12)
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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 : 7 (1 to 9); 63 (1, 2, 4 to 6); 64 (1, 3, 4-5, 6); 65 (1 to 6); 66 (1 to 5); 67 (1 to 6); 68 (Suppl 2, 1 to 6); 69 (1 to 9); 71 (1 to 9, 11, 12); 72 (1 to 9, 11, 12); 73 (1 to 9, 11, 12); 74 (1 to 9, 11, 12); 75 (1 to 9, 11, 12); 76 (1 to 9, 11, 12); 77 (1 to 9, 11, 12)
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