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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 (sup1, 1 to 4); 2 (1 to 3); 3 (1-2); 4 (2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1 to 3); 9 (sup1, 1 to 3); 11 (1 to 4); 12 (1 to 4); 13 (1, 2, 3-4); 14 (1, 2, 3-4); 15 (1 to 4); 16 (1 to 6); 17 (1 to 6); 18 (1-2, 3-4, 5-6); 19 (1 to 3, 4-6)
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Library of Congress
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Preserved
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2025-04-07
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7 (1, 2); 8 (1 to 3); 9 (sup1, 1 to 3); 10 (sup1, 1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 3-4); 14 (1 to 3-4); 15 (1 to 4); 16 (2, 4 to 6); 17 (1 to 6); 18 (1-2, 3-4, 5-6); 19 (1 to 4-6); 20 (1-2, 3, 4)
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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 : 1 (1, 2); 2 (1, 2); 3 (1-2); 4 (2); 5 (1, 2)
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1, 2); 2 (1, 2); 3 (1-2); 4 (2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1 to 3); 9 (sup1, 2, 3); 10 (sup1, 1 to 4); 11 (1 to 4); 12 (1 to 3); 13 (1, 2, 3-4); 14 (1, 2); 15 (1 to 4); 16 (1 to 6); 17 (1 to 6); 18 (1-2, 3-4, 5-6); 19 (1 to 3, 4-6); 20 (1-2, 3 to 6); 21 (1, 2)
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Portico
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Preserved
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2026-04-16
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Preserved : 2004: 1(1-2), 2005: 2(1-2), 2006: 3(1, 2)
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Portico
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Preserved
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2026-04-16
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Preserved : 2019: 16(1-6), 2020: 17(1-6), 2021: 18(1-6), 2022: 19(1-6), 2024: 20(1-5)
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 17
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CLOCKSS Archive
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Preserved
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2026-04-13
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ahead-of-print to 21
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Portico
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Preserved
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2026-04-16
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Preserved : 2004: 1(1-2), 2005: 2(1-2), 2006: 3(1-2), 2007: 4(1-2), 2008: 5(1-2), 2009: 6(1-2), 2010: 7(1-2), 2011: 8(1-3), 2012: 9(1-3), 2013: 10(1-4), 2014: 11(1-4), 2015: 12(1-4), 2016: 13(1-4), 2017: 14(1-4), 2018: 15(1-4), 2019: 16(1-6), 2020: 17(1-6), 2021: 18(1-6), 2022: 19(1-6), 2024: 20(1-6), 2025: 21(1-3)
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