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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 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); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 6); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1, 2, 3-4); 18 (1, 3, 4); 19 (1 to 4); 20 (1 to 4); 21 (S1, 1 to 4); 22 (S1, 1 to 4); 23 (S1, 1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (S1, 2 to 4); 27 (1 to 4); 28 (S1, 1 to 6); 29 (1 to 6); 30 (S1, 1 to 6); 31 (S1, 1, 4 to 6); 32 (S1, 3, 4); 33 (S1)
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Portico
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Preserved
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2026-04-09
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Preserved : 1997: 5(1-4)
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Portico
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Preserved
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2026-04-09
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Preserved : 1993: 1(1-4), 1994: 2(1-4), 1995: 3(1-4), 1996: 4(1-4), 1997: 5(1-4), 1998: 6(1-4), 1999: 7(1-4), 2000: 8(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 33
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Portico
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Preserved
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2026-04-09
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Preserved : 2008: 16(1-4), 2009: 17(2-4), 2010: 18(S 1, 2, 4), 2011: 19(1-2, 4), 2012: 20(1-3), 2013: 21(1-4), 2014: 22(1, S 1, 2-4), 2015: 23(1, S 1, 2-4), 2016: 24(1-4), 2017: 25(1-4), 2017/2018: 26(1, S 1, 2, S 2, 3-4), 2018/2019: 27(1-4), 2019/2020: 28(1, S 1, 2-6), 2021: 29(1-6), 2022: 30(1, S 1, 2-6), 2023: 31(1, S 1, 2-6), 2024: 32(1, S 1, 2-4), 2025: 33(S 1, 2-5)
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Library of Congress
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Preserved
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2025-04-07
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27 (2 to 4); 28 (1 to 4, S1, 5, 6); 29 (1 to 6); 30 (S1, 1 to 6); 31 (S1, 1, 4 to 6)
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