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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 21
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Portico
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Preserved
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2026-05-28
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Preserved : 2017: 15(4), 2018: 16(1-4), 2019: 17(1-4), 2020: 18(1-4), 2021: 19(1-4), 2022: 20(1-4), 2023: 21(1-4), 2024: 22(1-3), 2025: 23(1-4), 2026: 24(1)
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LOCKSS Archive
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In Progress
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2026-05-25
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16 to 18
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CLOCKSS Archive
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Preserved
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2026-05-25
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16 to 24
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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 : 16 (3, 4); 17 (1-3)
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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 : 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 22 (1 to 4)
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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 : 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 22 (1 to 4)
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