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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 46 (3); 52 (, 17); 58 (, 36); 2001; 2007; 2013
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Internet Archive
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Preserved
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2025-08-08
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34 to 36
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CLOCKSS Archive
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Preserved
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2026-02-09
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42 to 59
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 42(1-12, 14-24), 1998: 43(1, S 1, 2-24), 1999: 44(1-24), 2000: 45(1, S 1, 2-24), 2001: 46(1-24), 2002: 47(1, S 1, 2-24), 2003: 48(1, S 1, 2-24), 2004: 49(1, S 1, 2-24), 2005: 50(1-24), 2006: 51(1-24), 2007: 52(1-24), 2008: 53(1-24), 2009: 54(1-24), 2010: 55(1-36), 2011: 56(1-36), 2012: 57(1-27, 31, 34-36), 2013: 58(1-11, 13-18, 22-27, 31-33, 35-36), 2014: 59(1-36)
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LOCKSS Archive
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In Progress
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2026-02-09
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57
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LOCKSS Archive
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Preserved
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2026-02-09
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58, 59
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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 : 55 (2 to 4, 6 to 9, 11 to 19, 21 to 27, 29, 31 to 36); 56 (1 to 4, 6 to 9, 11 to 19, 21 to 28, 31 to 36); 57 (1 to 9, 11 to 19, 21 to 28, 31 to 36); 58 (1 to 4, 6 to 9, 11 to 19, 21 to 28, 31 to 36)
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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 : 55 (2 to 4, 6 to 9, 11 to 19, 21 to 27, 29, 31 to 36); 56 (1 to 4, 6 to 9, 11 to 19, 21 to 28, 31 to 36); 57 (1 to 9, 11 to 19, 21 to 28, 31 to 36); 58 (1 to 4, 6 to 9, 11 to 19, 21 to 28, 31 to 36)
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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 : 6 (1 to 9, 11 to 19, 21 to 24); 56 (1 to 3, 4-5, 6 to 9, 11 to 19, 21 to 27, 28-29, 31 to 36); 57 (1 to 9, 11 to 19, 21 to 27, 28-29, 31 to 36); 58 (1 to 3, 4-5, 6 to 9, 11 to 19, 21 to 27, 28-29, 31 to 36); 59 (1 to 4, 5-6, 7 to 9, 11 to 19, 21 to 28, 29-3, 31 to 36); 61 (1 to 9, 11 to 19, 21 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 : 6 (1 to 9, 11 to 19, 21 to 24); 56 (1 to 3, 4-5, 6 to 9, 11 to 19, 21 to 27, 28-29, 31 to 36); 57 (1 to 9, 11 to 19, 21 to 27, 28-29, 31 to 36); 58 (1 to 3, 4-5, 6 to 9, 11 to 19, 21 to 27, 28-29, 31 to 36); 59 (1 to 4, 5-6, 7 to 9, 11 to 19, 21 to 28, 29-3, 31 to 36); 61 (1 to 9, 11 to 19, 21 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 : 42 (2, 7-9); 43 (6, 10, 11, 23, 24); 44 (1, 7, 16, 18, 23); 45 (14, 22); 46 (supplement-1, 1-6, 8, 9, 12, 15-17, 24); 47 (1-7, 17-21); 48 (1-23); 49 (2, 3, 6-24); 50 (supplement-1, 1, 7, 8, 11-22, 24); 51 (1-18, 20-24); 52 (1-5, 8-13, 15-24); 53 (supplement-2, 1-24); 54 (1-24); 55 (1-3, 4-5, 6-26, 27-28, 29-36); 56 (1-3, 4-5, 6-27, 28-29, 30-36); 57 (1, 2-3, 4-27, 28-29, 30-36); 58 (1-3, 4-5, 6-8, 10-27, 28-29, 30-36); 59 (1-4, 5-6, 7-28, 29-30, 31-36)
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