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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 (1-2, 3, 4); 6 (1 to 4); 7 (1 to 4); 8 (1-2, 3, 4); 9 (1 to 4); 10 (1 to 4); 11 (1-2, 3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1, 2-3, 4 to 6); 17 (Suppl, 1 to 6); 18 (1 to 6); 19 (1 to 4, 5-6); 20 (1 to 6); 21 (1 to 3, 4-5, 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (5, 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (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 35
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Portico
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Preserved
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2026-04-09
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Preserved : 1997: 6(1-4), 1998: 7(1-4), 1999: 8(1-4), 2000: 9(1-4), 2001: 10(1-4), 2002: 11(1-4), 2003: 12(1-4), 2004: 13(1-4), 2005: 14(1-4), 2006: 15(1-4), 2006/2007: 16(1-6), 2008: 17(1, S 1, 2-6), 2009: 18(1-6), 2010: 19(1-6), 2011: 20(1-6), 2012: 21(1-5), 2013: 22(1-4), 2014: 23(1-6), 2015: 24(1, 3-6), 2016: 25(1-6), 2017: 26(1-6), 2018: 27(1-6), 2019: 28(1-6), 2019/2020: 29(1-6), 2021: 30(1-6), 2022: 31(1-6), 2023: 32(2-6), 2024: 33(1-6), 2025: 34(1-6), 2026: 35(1-2)
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LOCKSS Archive
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In Progress
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2026-04-06
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14 to 16, 28
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LOCKSS Archive
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Preserved
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2026-04-06
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17 to 27
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Library of Congress
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Preserved
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2025-04-07
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27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 1 (1 to 4); 2 (1 to 6); 3 (1 to 6); 6 (1 to 4); 7 (1 to 4); 8 (1, 3, 4); 9 (1 to 4); 11 (1, 3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1, 2, 4 to 6); 17 (Suppl 1, 1 to 6); 18 (1 to 6); 19 (1 to 5); 21 (1 to 4, 6); 22 (1 to 6); 23 (Suppl 1, 1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 1 (1 to 4); 2 (1 to 6); 3 (1 to 6); 6 (1 to 4); 7 (1 to 4); 8 (1, 3, 4); 9 (1 to 4); 11 (1, 3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1, 2, 4 to 6); 17 (Suppl 1, 1 to 6); 18 (1 to 6); 19 (1 to 5); 21 (1 to 4, 6); 22 (1 to 6); 23 (Suppl 1, 1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6)
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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 : 10 (1, 4); 11 (1-2, 3, 4); 12 (2, 4); 13 (1-4); 14 (1-4); 15 (2-4); 16 (1, 2-3, 4-6); 17 (1, 2, 4-6); 18 (1-5); 19 (3, 4, 5-6); 20 (1-6); 21 (1-3, 4-5, 6); 22 (1-4, 6); 23 (supplement-1, 1-6); 24 (1-6); 25 (1, 2, 4-6); 26 (1-5); 27 (1, 2, 4-6); 28 (2, 3, 5, 6)
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