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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 7
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1, 4, 6); 2 (1 to 4, 6); 3 (1 to 5); 4 (1); 5 (2 to 6); 6 (1, 3 to 6); 7 (1 to 6); 8 (1, 3 to 6); 9 (1 to 6); 10 (Suppl, 1 to 6); 11 (1 to 6); 12 (Suppl, 1 to 6); 13 (Suppl, 1 to 6); 14 (1, 2)
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Portico
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Preserved
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2026-04-09
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Preserved : 2012/2013: 1(1, 1, S, 2-6), 2014: 2(1-6), 2015: 3(1-6), 2016: 4(1-6), 2017: 5(1-6), 2018: 6(1-6), 2019: 7(1-6)
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 8
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Portico
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Preserved
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2026-04-09
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Preserved : 2017: 5(6)
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CLOCKSS Archive
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Preserved
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2026-04-06
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5, 8 to 14
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Portico
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Preserved
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2026-04-09
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Preserved : 2019: 7(5)
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Portico
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Preserved
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2026-04-09
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Preserved : 2020: 8(6), 2021: 9(5), 2022: 10(1, S 1, 2-6), 2023: 11(1-6), 2024: 12(1-6), 2025: 13(1, S 1, 2-6), 2026: 14(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 : 8 (1 to 6); 9 (1 to 6); 11 (1 to 5); 12 (Suppl 1, 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 : 8 (1 to 6); 9 (1 to 6); 11 (1 to 5); 12 (Suppl 1, 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 : 1 (1-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-4, 6); 7 (1-6)
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