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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 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 2008; 2009; 2010; 2011; 2012; 2013; 2014
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Library of Congress
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Preserved
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2025-04-07
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4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 3); 11 (1, 2, 4, S2); 12 (1 to 4, S1); 13 (1 to 4, S1); 14 (1 to 4); 15 (1 to 4); 16 (3, 4); 17 (1, 2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1, 2, 4 to 18
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 5(1-4), 2013: 6(1-4), 2014: 7(1-4), 2015: 8(1-4), 2016: 9(1-4), 2017: 10(1-4), 2018: 11(1, S1, 2, S2, 3-4), 2019: 12(1, S1, 2, S 2, 3-4), 2020: 13(1, S1, 2-4), 2021: 14(1-4), 2022: 15(1-4), 2023: 16(1-4), 2024: 17(1-4), 2025: 18(1-4), 2026: 19(1)
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