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Scholars Portal
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Preserved
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2025-09-02
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Preserved :
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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 (2-3, 4); 2 (1, 3,4, 4); 3 (Supplement 1, 2 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1, 2, 3-4); 8 (1, 2); 9 (3-4); 11 (1 to 4); 12 (1,2, 3, 4); 13 (1,2, 3,4); 14 (1,2, 3,4); 15 (1,2, 3,4); 16 (1, 2,3, 4); 17 (1, 2, 3,4); 18 (1 to 4); 19 (1,2, 3, 4); 21 (1,2, 3,4); 22 (1,2, 3,4); 23 (1,2, 3, 4); 24 (1 to 4); 25 (1 to 4); 26 (1,2, 3, 4); 27 (1 to 4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 27
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Portico
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Preserved
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2026-02-12
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Preserved : 2013: 26(1-4), 2013: 27(1-4), 2014: 2014(1), 2015: 2015(1), 2016: 2016(1), 2017: 2017(1), 2018: 2018(1), 2019: 2019(1), 2020: 2020(1), 2021: 2021(1), 2022: 2022(1), 2023: 2023(1), 2024: 2024(1), 2025: 2025(1), 2026: 2026(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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2013 to 2020
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LOCKSS Archive
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Preserved
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2026-02-09
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2013 to 2023
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Portico
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Preserved
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2026-02-12
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Preserved : 2014: 2014, 2015: 2015, 2016: 2016, 2017: 2017, 2018: 2018, 2019: 2019, 2020: 2020, 2021: 2021, 2022: 2022, 2023: 2023, 2024: 2024, 2025: 2025
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CLOCKSS Archive
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In Progress
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2026-02-09
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2021 to 2023
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Library of Congress
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Preserved
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2025-04-07
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2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024
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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; 2 (4); 3 (supplement-1, 2-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1, 2, 3-4); 8 (1, 2); 9 (3-4); 10 (1, 2-3, 4); 11 (1-4); 12 (1-2, 3, 4); 13 (1-2, 3-4); 14 (1-2, 3-4); 15 (1-2, 3-4); 16 (1, 2-3, 4); 17 (1, 2, 3-4); 18 (1-4); 19 (1-2, 3, 4); 20 (1-2, 3-4); 21 (1-2, 3-4); 22 (1-2, 3-4); 23 (1-2, 3, 4); 24 (1-4); 25 (1-4); 26 (1-2, 3, 4); 27 (1-4)
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