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CLOCKSS Archive
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Preserved
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2026-03-30
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1 to 24
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LOCKSS Archive
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Preserved
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2026-03-30
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1 to 24
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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 : 2 (sup1, 1 to 9, 11, 12); 14 (1 to 5, 6-7, 8); 15 (sup1, 1 to 8); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (sup1, 1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (sup1, 1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (sup1, 1 to 9, 11, 12)
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (sup1, 1 to 4); 6 (sup1, 1 to 4); 7 (sup1, 1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 8); 14 (1 to 5, 6-7, 8); 15 (sup1, 1 to 8); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (sup1, 1 to 12); 20 (sup1, 1 to 12); 21 (1 to 12); 22 (sup1, 1 to 12); 23 (1 to 12); 24 (sup1, 1 to 12)
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Portico
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Preserved
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2026-04-02
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Preserved : 1999: 16(1-12), 2000: 17(1-12), 2001: 18(1-12), 2002: 19(1-12), 2003: 20(1-12), 2004: 21(1-12), 2005: 22(1-12), 2006: 23(1-12), 2007: 24(1-12), 2007/2008: 25(1-12), 2009: 26(1-7)
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