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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2, 4 to 6); 2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 5)
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LOCKSS Archive
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Preserved
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2026-04-06
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1
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Portico
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Preserved
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2026-04-02
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Preserved : 2019: 1(2)
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Portico
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Preserved
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2026-04-02
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Preserved : 2020: 2(6), 2021: 3(6), 2022: 4(1-5), 2023: 5(1, S 1, 2-6), 2024: 6(1-4), 2025: 7(1-6)
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CLOCKSS Archive
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Preserved
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2026-04-06
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3 to 7
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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 : 1 (1 to 6); 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 : 1 (1 to 6); 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 : 6 (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 : 6 (1 to 4)
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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 : 1 (1-5)
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