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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 2001 (2 to 24); 2002 (1 to 40); 2003 (1 to 52); 2004 (1 to 80); 2005 (1 to 64); 2006 (none); 2008; 2009 (1 to 24); 2010 (1); 2011 (14 to 24); 2012 (1 to 4, 6); 2014 (2 to 24); 2015 (1 to 24); 2016 (1 to 9, 12 to 21, 23); 2017 (2 to 24); 2018 (1 to 24); 2019 (1 to 24); 2020 (1 to 24); 2021 (1 to 24); 2022 (1 to 24); 2023 (1 to 24); 2024 (1 to 8, 10 to 24); 2025 (1 to 4, 6, 12, 13, 15 to 24); 2026 (1 to 6)
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Portico
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Preserved
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2026-04-23
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Preserved : 2006: 2006, 2007: 2007, 2008: 2008, 2008/2009: 2009(1-24), 2009/2010: 2010(1-24), 2010/2011: 2011(1-24), 2011/2012: 2012(1-24), 2012/2013: 2013(1-24), 2012/2013/2014: 2014(1-24), 2013/2014/2015: 2015(1-24), 2015/2016: 2016(1-24), 2016/2017: 2017(1-24), 2018: 2018(1-24), 2019: 2019(1-24), 2020: 2020(1-24), 2021: 2021(1-24), 2022: 2022(1-24), 2023: 2023(1-24), 2024: 2024(1-24), 2025: 2025(1-24), 2026: 2026(1-8)
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LOCKSS Archive
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Preserved
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2026-04-27
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2008, 2010 to 2024
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CLOCKSS Archive
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Preserved
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2026-04-27
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2008 to 2018, 2025, 2026
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CLOCKSS Archive
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In Progress
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2026-04-27
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2019 to 2025
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LOCKSS Archive
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In Progress
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2026-04-27
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2025, 2026
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 2025 (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 : 21 (1 to 9, 11 to 19, 21 to 24); 22 (1 to 9, 11 to 19, 21 to 24); 27; 28; 29 (1 to 9, 11 to 19, 21 to 24); 211 (1 to 9, 11 to 19, 21 to 24); 212 (1 to 9, 11 to 19, 21 to 24); 213 (1 to 9, 11 to 19, 21 to 24); 214 (1 to 9, 11 to 19, 21 to 24); 215 (1 to 9, 11 to 19, 21 to 24); 216 (1 to 9, 11 to 19, 21 to 24); 217 (1 to 9, 11 to 19, 21 to 24); 218 (1 to 9, 11 to 19, 21 to 24); 219 (1 to 9, 11 to 19, 21 to 24); 221 (1 to 9, 11 to 19, 21 to 24); 222 (1 to 9, 11 to 19, 21 to 24); 223 (1 to 9, 12 to 19, 21 to 24); 224 (1 to 9, 11 to 19, 21, 22, 24); 225 (1 to 9, 11 to 17)
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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 : 21 (2 to 9, 11 to 19, 21 to 24); 22 (1 to 9, 11 to 19, 21 to 24); 27; 28; 29 (1 to 9, 11 to 19, 21 to 24); 211 (1 to 9, 11 to 19, 21 to 24); 212 (1 to 9, 11 to 19, 21 to 24); 213 (1 to 9, 11 to 19, 21 to 24); 214 (1 to 9, 11 to 19, 21 to 24); 215 (1 to 9, 11 to 19, 21 to 24); 216 (1 to 9, 11 to 19, 21 to 24); 217 (1 to 9, 11 to 19, 21 to 24); 218 (1 to 9, 11 to 19, 21 to 24); 219 (1 to 9, 11 to 19, 21 to 24); 221 (1 to 9, 11 to 19, 21 to 24); 222 (1 to 9, 11 to 19, 21 to 24); 223 (1 to 9, 12 to 19, 21 to 24); 224 (1 to 9, 11 to 19, 21, 22, 24); 225 (1 to 9, 11 to 19, 21)
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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 : 219 (22)
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British Library
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Preserved
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2019-09-18
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Preserved : 2014 (1 to 11; 13; 15 to 17; 20 to 21; 23 to 24), 2015 (7 to 15; 17 to 19; 23 to 24), 2016 (1 to 21; 23), 2017 (4 to 5; 7; 9; 14; 16; 21 to 22), 2018 (1; 3 to 21)
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