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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, 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 to 4); 13 (1 to 4); 14 (1, 2, 4); 15 (2 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1, 2-3, 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (2 to 4); 31 (1, 2, 4)
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Portico
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Preserved
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2026-04-02
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Preserved : 1992: 1(1-2), 1993: 2(1-2), 1994: 3(1-2), 1995: 4(1-2), 1996: 5(1-2), 1997: 6(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 11, 13 to 31, 33
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Portico
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Preserved
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2026-04-02
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Preserved : 2007: 14(4), 2008: 15(1-4), 2009: 16(1-4), 2010/2011: 17(1-4), 2011/2012: 18(1-4), 2012/2013: 19(1-4), 2013/2014: 20(1-4), 2014/2015: 21(1-4), 2015: 22(1-4), 2016: 23(1-4), 2017: 24(1-4), 2018: 25(1-4), 2019: 26(1-4), 2020: 27(1-4), 2021: 28(1-4), 2022: 29(1-4), 2023: 30(1-4), 2024: 31(1-2, 4)
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Portico
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Preserved
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2026-04-02
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Preserved : 2026: 33
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Library of Congress
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Preserved
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2025-04-07
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25 (4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (2 to 4); 31 (1)
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