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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 to 3); 2 (1 to 3); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1, 3); 9 (1 to 3); 10 (1 to 3); 11 (2, 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 20, 23
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Portico
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Preserved
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2026-04-23
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Preserved : 2007: 4(3), 2008: 5(1-3), 2009: 6(1-3), 2010: 7(1-3), 2011: 8(1-3), 2012: 9(1-3), 2013: 10(1-3), 2014: 11(1-3), 2014: 12(1-3), 2014/2016: 13(1-3), 2015/2017: 14(1-3), 2016/2017: 15(1-3), 2019: 16(1-3), 2020: 17(1-4), 2021: 18(1-4), 2022: 19(1-4), 2023: 20(1-4), 2024: 21(1-3)
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Library of Congress
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Preserved
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2025-04-07
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16 (2, 3); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4)
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