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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 53 (Suppl, 1 to 12); 54 (1 to 12); 55 (1 to 12); 56 (1 to 12); 57 (1 to 12); 58 (1 to 12); 59 (1 to 12); 60 (1 to 12); 61 (1 to 12); 62 (1 to 12); 63 (1 to 12); 64 (1 to 12); 65 (1 to 12); 66 (Suppl, 1 to 12); 67 (1, 2, 4 to 12); 68 (1 to 12); 69 (1 to 3)
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Portico
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Preserved
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2026-04-02
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Preserved : 2010: 53(1, S 1, 2-12), 2010/2011: 54(1-12), 2012: 55(1-9, 12), 2013: 56(1-9, 11-12), 2014: 57(1-9, 11-12), 2015: 58(4-12), 2016: 59(1-12), 2017: 60(1-12), 2018: 61(1-12), 2018/2019: 62(1-12), 2019/2020: 63(1-12), 2021: 64(1-12), 2022: 65(1-12), 2023: 66(1, S 1, 2-12), 2024: 67(1-11), 2025: 68(1-2, 4-12), 2026: 69(1-3)
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LOCKSS Archive
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In Progress
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2026-04-06
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55
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LOCKSS Archive
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Preserved
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2026-04-06
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56 to 62
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CLOCKSS Archive
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Preserved
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2026-04-06
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53 to 69
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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 : 53 (supplement-1, 1-12); 54 (1-12); 55 (1-12); 56 (1-12); 57 (1-12); 58 (1-12); 59 (1-12); 60 (1-12); 61 (1-12); 62 (1-11)
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Library of Congress
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Preserved
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2025-04-07
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61 (1 to 12); 62 (1 to 12); 63 (1 to 12); 64 (1 to 12); 65 (1 to 12); 66 (1, S1, 2 to 12); 67 (1 to 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 : 6 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (Suppl 1, 1 to 9, 11, 12); 67 (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 : 6 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 9, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 9, 11, 12); 66 (Suppl 1, 1 to 9, 11, 12); 67 (1 to 9, 11, 12)
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