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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 19 (2 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 12); 30 (1 to 13); 31 (1 to 13); 32 (1 to 14); 33 (1, 3 to 15); 34 (1 to 16); 35 (1 to 4)
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LOCKSS Archive
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In Progress
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2026-04-27
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21, 28
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LOCKSS Archive
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Preserved
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2026-04-27
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22 to 27
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CLOCKSS Archive
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Preserved
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2026-04-27
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19 to 35
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Portico
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Preserved
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2026-04-23
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Preserved : 2010: 19(2, 4-5), 2011: 20(4), 2012: 21(3, 5-6), 2013: 22(1-4, 6), 2014: 23(1-4, 6), 2015: 24(1-6), 2016: 25(1, S 1, 2-6), 2017: 26(1-6), 2018: 27(1-6), 2019: 28(1-3, 5-6), 2019/2020: 29(1-12), 2021: 30(1-13), 2022: 31(1-13), 2023: 32(2-14), 2024: 33(1-15), 2025: 34(1-2, 4-16), 2026: 35(1-5)
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Library of Congress
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Preserved
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2025-04-07
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27 (2 to 6); 28 (1 to 6); 29 (1 to 12); 30 (1 to 13); 31 (1 to 13); 32 (1 to 14); 33 (1 to 14)
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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 : 19 (1, 2)
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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 : 19 (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 : 2 (1 to 6); 3 (1 to 9, 11 to 13); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 9, 11, 12); 31 (1 to 9, 11 to 13); 32 (1 to 9, 11 to 14); 33 (1 to 9, 11 to 15)
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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 : 2 (1 to 6); 3 (1 to 9, 11 to 13); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 9, 11, 12); 31 (1 to 9, 11 to 13); 32 (1 to 9, 11 to 14); 33 (1 to 9, 11 to 15)
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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 : 19 (1-6); 20 (1-6); 21 (1-6); 22 (supplement-1, 1-6); 23 (1-6); 24 (1-6); 25 (supplement-1, 1-6); 26 (1-6); 27 (1-6); 28 (2-5)
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