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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 6); 2 (1 to 6); 3 (1 to 5); 4 (1 to 3, 4-5, 6); 5 (1-2, 3-4, 5-6); 6 (1, 3 to 6)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 6
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 6
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Portico
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Preserved
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2026-04-09
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Preserved : 2011: 1(1-6), 2012: 2(1-6), 2013: 3(1-5), 2014: 4(1-6), 2015: 5(1-6), 2016: 6(1-6)
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Library of Congress
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Preserved
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2025-04-07
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1 (1 to 6); 2 (1 to 6); 3 (1 to 5); 4 (1 to 4-5, 6); 5 (1-2, 3-4, 5-6); 6 (1 to 6)
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