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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 67 (1 to 12); 68 (1 to 12); 69 (1, 5 to 12); 70 (1 to 12); 71 (1 to 12); 72 (1 to 12); 73 (1 to 12); 74 (1 to 12); 75 (1 to 12); 76 (1 to 6, 7-8, 9-10, 11-12); 77 (1-2, 3-4, 5-6, 7 to 12); 78 (1 to 9, 10-12); 79 (1-3, 4-5, 6-8, 9-11, 12); 80 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 81 (1, 2-3, 4-5, 6-7, 8, 9-10, 11, 12); 82 (1-2, 3 to 12); 83 (1 to 3)
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CLOCKSS Archive
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Preserved
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2026-04-27
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67 to 83
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Portico
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Preserved
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2026-04-30
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Preserved : 2010: 67(1-10), 2011: 68(1-12), 2012: 69(1-12), 2013: 70(1-12), 2014: 71(1-12), 2015: 72(1-12), 2016: 73(1-12), 2017: 74(1-12), 2018: 75(1-12), 2019: 76(1-12), 2020: 77(1-12), 2021: 78(1-12), 2022: 79(1-12), 2023: 80(1-12), 2024: 81(1-12), 2025: 82(1-12), 2026: 83(1-2)
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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, 11, 12); 8 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 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 (2 to 6, 7-8, 9-1, 11-12); 77 (1-2, 3-4, 5-6, 7 to 9, 11, 12); 78 (1 to 9); 79 (1-3, 4-5, 6-8, 9-11, 12); 81 (1, 2-3, 4-5, 6-7, 8, 9-1, 11, 12); 82 (1-2, 3 to 9)
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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, 11, 12); 8 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 67 (1 to 9, 11, 12); 68 (1 to 9, 11, 12); 69 (1 to 9, 11, 12); 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 (2 to 6, 7-8, 9-1, 11-12); 77 (1-2, 3-4, 5-6, 7 to 9, 11, 12); 78 (1 to 9); 79 (1-3, 4-5, 6-8, 9-11, 12); 81 (1, 2-3, 4-5, 6-7, 8, 9-1, 11, 12); 82 (1-2, 3 to 9)
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