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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 43 (1); 44; 45; 46 (2 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (Suppl, 1 to 6); 59 (1, 4); 60 (1, 4); 61 (1 to 5)
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CLOCKSS Archive
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Preserved
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2026-04-06
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43 to 61
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Portico
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Preserved
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2026-04-09
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Preserved : 2007: 43(1), 2008: 44(1), 2009: 45(1), 2010: 46(1-4), 2011: 47(1-4), 2012: 48(1-3), 2013: 49(1-4), 2014: 50(1-4), 2015: 51(2-4), 2016: 52(1-4), 2017: 53(1-4), 2018: 54(1-6), 2019: 55(1-6), 2020: 56(1-6), 2021: 57(1-6), 2022: 58(1, S 1, 2, S 2, 3-5), 2023: 59(1, 4), 2024: 60(1, 4), 2025: 61(1-6)
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LOCKSS Archive
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In Progress
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2026-04-06
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48, 55
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LOCKSS Archive
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Preserved
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2026-04-06
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49 to 54
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Library of Congress
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Preserved
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2025-04-07
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53 (4); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (S1, 1, 2, S2, 3 to 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 : 5 (1 to 4); 43 (1); 44; 45; 46 (2 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (Suppl 2, 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 : 5 (1 to 4); 43 (1); 44; 45; 46 (2 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (Suppl 2, 1 to 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 : 46 (2 to 4); 47 (1, 2)
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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 : 46 (2 to 4); 47 (1, 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 : 44 (1); 45; 46 (2-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-6); 55 (1-5)
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