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