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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 2 (3, 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 5); 7 (1 to 4); 8 (S01, 1 to 4); 9 (1 to 4); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (1 to 7); 19 (4, 6); 20 (1, 4, 6); 21 (1, 2, 4); 22 (1 to 3); 23 (1, 2, 5, 7, 8); 24 (4); 25 (Suppl); 28 (6, 8); 29 (Suppl, 1, 8); 30 (5, 7, 8); 31 (1)
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CLOCKSS Archive
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Preserved
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2026-05-18
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2 to 31
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Portico
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Preserved
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2026-05-14
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Preserved : 1997: 2(3-4), 1998: 3(1-4), 1999: 4(1-4), 2000: 5(1-4), 2001: 6(1-4), 2002: 7(1-4), 2003: 8(1-4), 2004: 9(1-4), 2005: 10(1-6), 2006: 11(1-6), 2007: 12(1-6), 2008: 13(1-6), 2009: 14(1-6), 2010: 15(1-8), 2011: 16(1-8), 2012: 17(1-8), 2013: 18(1-8), 2014: 19(1-8), 2015: 20(2-8), 2016: 21(1-8), 2017: 22(1-8), 2018: 23(1-8), 2019: 24(1-8), 2020: 25(1, S 1, 2-8), 2021: 26(1-8), 2022: 27(1, S 1, 2-8), 2023: 28(1, S 1, 2, S 2, 3-8), 2024: 29(1-7), 2025: 30(1, 3-8), 2026: 31(1-3)
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LOCKSS Archive
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In Progress
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2026-05-18
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17, 24
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LOCKSS Archive
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Preserved
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2026-05-18
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18 to 23
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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 (3, 4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-8); 16 (1-8); 17 (2-8); 18 (1-8); 19 (supplement-1, 1-8); 20 (supplement-1, 1-8); 21 (supplement-1, 1-8); 22 (supplement-1, 1-8); 23 (supplement-1, 1-8); 24 (supplement-1, 1-7)
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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 6); 2 (1 to 8); 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); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (1 to 8); 19 (1 to 8); 21 (1 to 8); 22 (1 to 8); 23 (Suppl 1, 1 to 8); 24 (Suppl 1, 1 to 8); 25 (Suppl 1, 1 to 8); 26 (1 to 8); 27 (Suppl 1, 1 to 8); 28 (Suppl 2, 1 to 8); 29 (Suppl 1, 1 to 8)
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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 6); 2 (1 to 8); 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); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (1 to 8); 19 (1 to 8); 21 (1 to 8); 22 (1 to 8); 23 (Suppl 1, 1 to 8); 24 (Suppl 1, 1 to 8); 25 (Suppl 1, 1 to 8); 26 (1 to 8); 27 (Suppl 1, 1 to 8); 28 (Suppl 2, 1 to 8); 29 (Suppl 1, 1 to 8)
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