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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; 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1, 2); 13 (1, 3, 4); 14 (1, 3); 16 (1_suppl, 2 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1_suppl, 2 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 (1 to 4); 31 (1 to 4); 32 (1_suppl, 2 to 4)
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Internet Archive
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Preserved
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2025-08-08
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1 to 15
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Portico
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Preserved
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2026-04-09
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Preserved : 1993: 1(4)
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Portico
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Preserved
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2026-04-09
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Preserved : 1995: 2(4)
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Portico
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Preserved
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2026-04-09
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Preserved : 2002: 9(1-4), 2003: 10(1-4), 2004: 11(1-4), 2005: 12(1-2), 2006: 13(1, 3-4), 2007: 14(1, 3)
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CLOCKSS Archive
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Preserved
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2026-04-06
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15 to 23, 27
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Portico
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Preserved
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2026-04-09
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Preserved : 2008: 15(4), 2009: 16(1-2, 2, S, 3-4), 2010: 17(1-4), 2011: 18(1-4), 2012: 19(1-4), 2013: 20(1, 1, S, s1-2, 2, S, s2-4), 2014: 21(1-4), 2015: 22(1-4), 2016: 23(1, 1, S, 2, 2, S, 3-4), 2017: 24(1-4), 2018: 25(1-4), 2019: 26(1-3, 3, S, 4), 2020: 27(1-3), 2021: 28(2-4), 2022: 29(1-4), 2023: 30(1-4), 2024: 31(1-4), 2025: 32(1, 1, S, 2-4)
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LOCKSS Archive
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Preserved
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2026-04-06
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16 to 31
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CLOCKSS Archive
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In Progress
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2026-04-06
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24 to 26, 28 to 32
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LOCKSS Archive
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In Progress
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2026-04-06
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32
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Library of Congress
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Preserved
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2025-04-07
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17 (2_suppl, 1_suppl, 1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1_suppl, 2_suppl, 4_suppl, 1 to 4); 21 (1_suppl, 1 to 4); 22 (1 to 4); 23 (1_suppl, 2_suppl, 1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (3_suppl, 1 to 4); 27 (1 to 4); 28 (1_suppl, 1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 2 (4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1, 2); 13 (1, 3, 4); 14 (1, 3); 16 (1-4); 17 (1-4); 18 (1, 2, 4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1, 2, 4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-3)
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British Library
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Preserved
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2019-09-18
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Preserved : 21 (1 to 4), 22 (1 to 4), 23 (1 to 4), 24 (1 to 4), 25 (1 to 3)
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