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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 30 (6, 9 to 12); 31 (2, 3, 7, 9, 12); 32 (1 to 4, 6 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 10, 12); 37 (1, 6 to 8); 38 (1, 3, 4, 7, 9, 12); 39 (7, 9, 12); 40 (2, 4, 9, 10); 41 (1 to 3, 6 to 8, 10, 12); 42 (2, 3, 6, 7, 10); 43 (6)
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CLOCKSS Archive
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Preserved
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2026-04-27
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30 to 50
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Portico
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Preserved
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2026-04-23
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Preserved : 2006: 30(1-12), 2007: 31(1-12), 2008: 32(1-12), 2009: 33(1-12), 2010: 34(1-12), 2011: 35(1-12), 2012: 36(1-12), 2013: 37(1-12), 2014: 38(1-12), 2015: 39(1-12), 2016: 40(1-12), 2017: 41(1-12), 2018: 42(1-12), 2019: 43(1-12), 2019/2020: 44(1-12), 2021: 45(1-12), 2022: 46(1-12), 2023: 47(1-12), 2024: 48(1-10, 12), 2025: 49(3-12), 2026: 50(1-3)
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LOCKSS Archive
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In Progress
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2026-04-27
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36, 43
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LOCKSS Archive
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Preserved
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2026-04-27
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37 to 42
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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 : 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12)
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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 : 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12)
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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 : 30 (2-12); 31 (1-12); 32 (1-12); 33 (1-9, 11, 12); 34 (1-12); 35 (1-12); 36 (1-12); 37 (1-12); 38 (1-12); 39 (1-12); 40 (1-12); 41 (1-12); 42 (1-12); 43 (1-12); 50 (2)
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Library of Congress
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Preserved
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2025-04-07
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40 (1 to 7, 9 to 12); 41 (1 to 4, 6 to 9, 11, 12); 42 (3 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 10)
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