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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 60 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (Suppl, 1 to 6); 67 (1 to 6); 68 (1 to 6); 69 (1 to 6); 70 (1 to 6); 71 (Suppl, 1 to 6); 72 (Suppl, 1 to 6); 73 (Suppl, 1 to 6); 74 (1 to 6); 75 (Suppl, 1 to 6)
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CLOCKSS Archive
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Preserved
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2026-04-13
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60 to 75
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Portico
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Preserved
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2026-04-16
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Preserved : 2010: 60(1-6), 2011: 61(1-6), 2012: 62(1-6), 2013: 63(1-6), 2014: 64(1-6), 2015: 65(1-6), 2016: 66(1, S 1, 2-6), 2017: 67(1-6), 2018: 68(1-6), 2019: 69(1-2, S 2, 3-6), 2020: 70(1-6), 2021: 71(1, S 1, 2, S 2, 3-6), 2022: 72(1, S 1, 2, S 2, 3-6), 2023: 73(1, S 1, 2, S 2, 3-6), 2024: 74(1-4, 6), 2025: 75(1, S 1, 2-6)
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LOCKSS Archive
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In Progress
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2026-04-13
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62, 69
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LOCKSS Archive
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Preserved
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2026-04-13
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63 to 68
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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)
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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)
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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 6); 7 (1 to 6); 61 (1 to 6); 62 (Suppl 1, 1 to 6); 63 (1 to 6); 64 (Suppl 1, 1 to 6); 65 (1 to 6); 66 (Suppl 2, 1 to 6); 67 (1 to 6); 68 (1 to 6); 69 (Suppl 1, 1 to 6); 71 (Suppl 2, 1 to 6); 72 (Suppl 2, 1 to 6); 73 (Suppl 2, 1 to 6); 74 (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 : 6 (1 to 6); 7 (1 to 6); 61 (1 to 6); 62 (Suppl 1, 1 to 6); 63 (1 to 6); 64 (Suppl 1, 1 to 6); 65 (1 to 6); 66 (Suppl 2, 1 to 6); 67 (1 to 6); 68 (1 to 6); 69 (Suppl 1, 1 to 6); 71 (Suppl 2, 1 to 6); 72 (Suppl 2, 1 to 6); 73 (Suppl 2, 1 to 6); 74 (1 to 6)
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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 : 60 (1-6); 61 (1-6); 62 (supplement-1, 1-6); 63 (1-6); 64 (supplement-1, 1-5); 65 (1-6); 66 (supplement-1, 1-6); 67 (1-6); 68 (1-6); 69 (supplement-1, 1-5)
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