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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 8 (3, 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1)
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Portico
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Preserved
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2026-04-09
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Preserved : 2004/2005: 1(1-4), 2006: 2(1-4), 2007: 3(1-4), 2008: 4(1-4), 2009: 5(1-4), 2010: 6(1, S 1, 2-4), 2011: 7(1-4), 2012: 8(1-4), 2013: 9(1-4), 2014: 10(1-4), 2015: 11(1-4), 2016: 12(1-4), 2017: 13(1-4), 2018: 14(1-6), 2019: 15(1-6), 2020: 16(1-6), 2021: 17(1-6), 2022: 18(1-6), 2023: 19(1-6), 2024: 20(1-6), 2025: 21(1-6), 2026: 22(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 22
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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 : 1 (1 to 4); 2 (1 to 6); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (S1, 1 to 4); 7 (S1, 1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (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 : 1 (1 to 4); 2 (1 to 6); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (S1, 1 to 4); 7 (S1, 1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 5)
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