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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 3 (1 to 7); 4 (1 to 13); 5 (1 to 13); 6 (1 to 13); 7 (1 to 12); 8 (1 to 13); 9 (1 to 6, 11, 12); 10 (S01, 1 to 3 to 12); 11 (01, 2 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 11); 24 (2); 25; 27 (Suppl)
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CLOCKSS Archive
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Preserved
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2026-04-06
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3 to 28
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Portico
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Preserved
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2026-04-09
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Preserved : 1997: 3(1-6), 1998: 4(1-12), 1999: 5(1-12), 2000: 6(1-12), 2001: 7(1-12), 2002: 8(1-12), 2003: 9(1-12), 2004: 10(1-12), 2005: 11(1-12), 2006: 12(1-12), 2007: 13(1-12), 2008: 14(1-12), 2009: 15(1-12), 2010: 16(1-12), 2011: 17(1-12), 2012: 18(1-12), 2013: 19(1-12), 2014: 20(1-12), 2015: 21(2-12), 2016: 22(1-12), 2017: 23(1-12), 2018: 24(1-12), 2019: 25(1, S 1, 2, S 2, 3-12), 2020: 26(1-12), 2021: 27(1, S 1, 2, S 2, 3-12), 2022: 28(1, S 1, 2, S 2, 3-5)
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LOCKSS Archive
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In Progress
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2026-04-06
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18, 25
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LOCKSS Archive
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Preserved
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2026-04-06
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19 to 24
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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 : 1 (5); 3 (1-6); 4 (1-12); 5 (1-12); 6 (1-12); 7 (1-12); 8 (supplement-1, 1-12); 9 (1-12); 10 (supplement-1, 1-3-12); 11 (1-12); 12 (1-12); 13 (1-3, 5-12); 14 (1-12); 15 (1-12); 16 (1-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-12); 23 (1-12); 24 (supplement-1, 1-12); 25 (supplement-1, 1-11)
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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 9, 11, 12); 2 (1 to 9, 11, 12); 3 (Suppl 2, 1 to 9, 11, 12); 4 (1 to 9, 11, 12); 5 (1 to 9, 11, 12); 6 (1 to 9, 11, 12); 7 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 9 (1 to 9, 11, 12); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (Suppl 2, 1 to 9, 11, 12); 25 (Suppl 1, 1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (Suppl 2, 1 to 9, 11, 12); 28 (Suppl 2, 1 to 9, 11, 12); 29 (1 to 9, 11, 12)
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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 9, 11, 12); 2 (1 to 9, 11, 12); 3 (Suppl 2, 1 to 9, 11, 12); 4 (1 to 9, 11, 12); 5 (1 to 9, 11, 12); 6 (1 to 9, 11, 12); 7 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 9 (1 to 9, 11, 12); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (Suppl 2, 1 to 9, 11, 12); 25 (Suppl 1, 1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (Suppl 2, 1 to 9, 11, 12); 28 (Suppl 2, 1 to 9, 11, 12); 29 (1 to 9, 11, 12)
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