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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 42 (1 to 12); 43 (1 to 14); 44 (1 to 12); 45 (1 to 12); 46 (1 to 7, 11, 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 4, 5-6, 7 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1, 2, 4 to 12); 54 (1 to 8, 9-10, 11, 12); 55 (1 to 5, 6-7, 8 to 10, 11-12); 56 (1 to 4, 11); 57 (2, 4, 10, 11); 58; 59 (3, 6, 7, 12); 60 (8); 61 (9, 10, 12); 62 (3); 63 (1, 2, 5, 9); 64 (5, 8); 66 (11); 67 (8, 11); 68 (7, 9, 10)
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LOCKSS Archive
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In Progress
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2026-04-06
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55, 62
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LOCKSS Archive
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Preserved
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2026-04-06
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56 to 61
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CLOCKSS Archive
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Preserved
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2026-04-06
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42 to 69
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Portico
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Preserved
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2026-04-09
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Preserved : 1999: 42(1-12), 2000: 43(1-12), 2001: 44(1-12), 2002: 45(1-12), 2003: 46(1-12), 2004: 47(1-12), 2005: 48(1-12), 2006: 49(1-12), 2007: 50(1-12), 2008: 51(1-12), 2009: 52(1-12), 2010: 53(1-2, 4-12), 2011: 54(1-12), 2012: 55(1-12), 2013: 56(1-12), 2014: 57(1-12), 2015: 58(3-12), 2016: 59(1-12), 2017: 60(1-12), 2018: 61(1-12), 2019: 62(1-12), 2020: 63(1-12), 2021: 64(1-12), 2022: 65(1-12), 2023: 66(2-12), 2024: 67(1-11), 2025: 68(2-12), 2026: 69(1-4)
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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 : 4 (1 to 9, 11, 12); 5 (1 to 5, 7 to 9, 11, 12); 6 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1, 2, 4 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 6, 8, 9, 11); 56 (1 to 5, 7 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 4, 6 to 9, 11); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 6, 7-8, 9, 11, 12); 66 (1 to 9, 11, 12); 67 (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 : 4 (1 to 9, 11, 12); 5 (1 to 5, 7 to 9, 11, 12); 6 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1, 2, 4 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 6, 8, 9, 11); 56 (1 to 5, 7 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (1 to 4, 6 to 9, 11); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11, 12); 63 (1 to 9, 11, 12); 64 (1 to 9, 11, 12); 65 (1 to 6, 7-8, 9, 11, 12); 66 (1 to 9, 11, 12); 67 (1 to 9, 11, 12)
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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 : 40 (1-12); 41 (supplement-1, 1-12); 42 (1-12); 43 (1-12); 44 (1-12); 45 (1-12); 46 (1-12); 47 (1-12); 48 (1-12); 49 (1-8, 10-12); 50 (1-3, 5-6, 7-12); 51 (1-12); 52 (1-12); 53 (1, 2, 4-12); 54 (1-8, 9-10, 11, 12); 55 (1-5, 6-7, 8-10, 11-12); 56 (1-4, 5-6, 7-12); 57 (1-12); 58 (1-3, 4-5, 6-10, 11-12); 59 (1-12); 60 (1-12); 61 (1-12); 62 (1-11)
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Library of Congress
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Preserved
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2025-04-07
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59 (4); 60 (2, 10, 11); 61 (2 to 12); 62 (1 to 12); 63 (1 to 12); 64 (1 to 12); 65 (1 to 7-8, 9 to 12); 66 (1 to 12); 67 (1 to 10)
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