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Portico
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Preserved
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2026-02-12
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Preserved : 2011: 1, 2011: 2, 2011: 3, 2011: 4, 2011: 5, 2011: 6, 2011: 7, 2011: 8, 2011: 9, 2011: 10, 2011: 11, 2011: 12, 2011: 13, 2011: 14, 2011: 15, 2011: 16, 2011: 17, 2011: 18, 2011: 19(1-2), 2011: 20, 2011: 21, 2011: 22, 2011: 23, 2011: 24, 2011: 25, 2011: 26, 2011: 27, 1958: 28, 2011: 29, 2011: 30, 2011: 31, 2011: 32, 2011: 33, 2011: 34, 2011: 35, 2011: 36, 1968: 37, 2011: 38, 1970: 39, 2011: 40, 2011: 41, 1974: 42
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1, 2); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1, 2); 17 (, 1, 2); 18 (, 1, 2); 19 (, 2); 20 (, 1); 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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LOCKSS Archive
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In Progress
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2026-02-09
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7, 14
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LOCKSS Archive
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Preserved
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2026-02-09
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8 to 13
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 20
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 1(1-2), 2007: 2(1-2), 2008: 3(1-2), 2009: 4(1-2), 2010: 5(1-2), 2011: 6(1-2), 2012: 7(1-2), 2013: 8(1-2), 2014: 9(1-2), 2015: 10(1-2), 2016: 11(1-2), 2017: 12(1-2), 2018: 13(1-2), 2019: 14(1-2), 2019/2020: 15(1-2), 2021: 16(1-2), 2022: 17(1-2), 2023: 18(1-2), 2024: 19(1-2), 2025: 20(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 1(1-2), 2008: 2(1-2), 2008: 3(1-2), 2008: 4(1-2), 2008: 5(1-2), 2008: 6(1-2), 2008: 7(1-2), 2008: 8(1-2), 2008: 9(1-2), 2008: 10(1-2), 2008: 11(1-2), 2008: 12(1-2), 2008: 13(1-2), 2008: 14(1-2), 2008: 15(1-2), 2008: 16(1-2), 2008: 17(1-2), 2008: 18(1-2), 2008: 19(1-2), 2008: 20(1-2), 2008: 21(1-2), 2008: 22(1-2), 2008: 23(1-2), 2008/2010: 24(1-2), 2008: 25(1-2), 2008: 26(1-2), 2008: 27(1-2), 2008: 28(1-2), 2008/2010: 29(1-2), 2008: 30(1-2), 2008: 31(1-2)
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Library of Congress
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Preserved
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2025-04-07
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13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 17 (1, 2)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 17 (1, 2)
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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 (2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1); 6 (2); 7 (1, 2); 8 (1); 9 (2); 10 (1, 2); 11 (1); 12 (2); 13 (1, 2); 14 (1, 2)
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