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CLOCKSS Archive
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Preserved
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2026-04-27
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3 to 27
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Portico
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Preserved
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2026-04-23
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Preserved : 2001/2002: 3(1-4), 2002/2003: 4(1-4), 2003/2004: 5(1-4), 2004/2005: 6(1-4), 2006: 7(1-4), 2006/2007: 8(1-4), 2007/2008: 9(1-4), 2008/2009: 10(1-4), 2009/2010: 11(1-4), 2010/2011: 12(1-4), 2012: 13(1-4), 2013: 14(1), 2014: 15(1, 3-4), 2015: 16(1-4), 2016: 17(1-4), 2017: 18(2-4), 2018: 19(1-4), 2019: 20(1-4), 2020: 21(1-4), 2021: 22(1-4), 2022: 23(1-4), 2023: 24(1-4), 2024: 25(1-4), 2025: 26(1-4), 2026: 27(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-27
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13 to 16
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LOCKSS Archive
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In Progress
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2026-04-27
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6 to 21
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Library of Congress
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Preserved
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2025-04-07
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17 (4); 18 (2 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 3); 24 (1 to 4); 25 (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 : 25 (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 : 25 (1 to 4)
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