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CLOCKSS Archive
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Preserved
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2026-02-09
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13 to 27
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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1994,1997-2012
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 12(1-2), 1997: 13(2-4), 1998/1999/2000: 14(1-4), 2001: 15(1-4), 2002: 16(1-4), 2003: 17(1-4), 2004: 18(1-4), 2005: 19(1-6), 2006: 20(1-6), 2007: 21(1-6), 2008: 22(1-6), 2009: 23(1-6), 2010: 24(1-6), 2011: 25(1-6), 2011: 26(1-6), 2012: 27(1-6), 2013: 2013
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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2012
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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 (1-2); 5 (s1, 1 to 4); 6 (1-2, 3-4); 7 (1-2, 3-4); 8 (1-2, 3-4); 9 (1-2, 3-4)
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Library of Congress
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Preserved
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2025-04-07
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24 (1-2, 3-4, 5, 6); 27 (2 to 5-6)
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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 : 13 (2-4); 14 (1-4); 15 (1, 2, 3-4); 16 (2, 3-4); 17 (1, 2-3, 4); 18 (1-4); 19 (1-4, 5-6); 20 (1-3, 5-6); 21 (1-4, 5-6); 22 (1, 2-3, 4-6); 23 (1, 2, 3-4, 5-6); 24 (3-4, 6); 25 (3-4, 5); 26 (1, 4-5)
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