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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 15 (1); 16; 17; 18 (2 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (2 to 4); 29 (1 to 4); 30 (1)
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LOCKSS Archive
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In Progress
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2026-04-13
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1 to 24
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 30
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Portico
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Preserved
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2026-04-16
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Preserved : 2011: 15(1), 2012: 16(1), 2013: 17(1), 2014: 18(1-4), 2015: 19(2-4), 2016: 20(1-4), 2017: 21(1-4), 2018: 22(1-4), 2019: 23(1-4), 2020: 24(1-4), 2021: 25(1-4), 2022: 26(1-4), 2023: 27(1-4), 2024: 28(1-4), 2025: 29(1-4), 2026: 30(1)
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Library of Congress
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Preserved
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2025-04-07
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22 (2 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 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 : 18 (2 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 : 18 (2 to 4)
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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 : 27 (1 to 4); 28 (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 : 27 (1 to 4); 28 (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 : 15; 16; 17; 18 (2-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-3)
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