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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 45 (2, 3); 46 (4); 47 (1 to 4); 48 (1 to 4); 49 (2); 50 (1, 3, 4); 51 (1, 2, 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63; 64 (1 to 4); 65 (1, 3, 4); 66 (1, 2, 3-4); 67 (1, 2-3, 4); 68 (1, 2-3, 4); 69 (3, 4); 70 (1, 4)
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Portico
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Preserved
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2026-05-28
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Preserved : 1988: 33(1-4), 1989: 34(1-4), 1990: 35(1-4), 1991: 36(1-4), 1992: 37(1-4), 1993: 38(1-4), 1994: 39(1-4), 1995: 40(1-4), 1996: 41(1-4), 1997: 42(1-4), 1998: 43(1-4), 1999: 44(1-4), 2000: 45(1-4), 2001: 46(1-4), 2002: 47(1-4), 2003: 48(1-4), 2004: 49(1-4), 2005: 50(1-4), 2006: 51(1-4), 2007: 52(1-4), 2008: 53(1-4), 2009: 54(1-4), 2010: 55(1-4), 2011: 56(1-4), 2012: 57(1-4), 2013: 58(1-4), 2014: 59(1-4), 2015: 60(2-4), 2016: 61(1-4), 2017: 62(1-4), 2018: 63(1-4), 2019: 64(1-4), 2020: 65(1-4), 2021: 66(1-4), 2022: 67(1-4), 2023: 68(1-4), 2024: 69(1-3), 2025: 70(1, 3-4)
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CLOCKSS Archive
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Preserved
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2026-05-25
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45 to 70
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LOCKSS Archive
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In Progress
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2026-05-25
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57, 64
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LOCKSS Archive
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Preserved
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2026-05-25
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58 to 63
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Library of Congress
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Preserved
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2025-04-07
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61 (3, 4); 62 (3, 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 3-4); 67 (1, 2-3, 4); 68 (1, 2-3, 4); 69 (1 to 3)
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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 : 5 (1 to 4); 6 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1, 2, 3-4); 67 (1, 2-3, 4); 68 (1, 2-3, 4); 69 (1 to 4)
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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 : 5 (1 to 4); 6 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1, 2, 3-4); 67 (1, 2-3, 4); 68 (1, 2-3, 4); 69 (1 to 4)
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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 : 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1, 2, 4); 52 (1-4); 53 (1, 2, 4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4); 58 (1-4); 59 (1-4); 60 (1-4); 61 (1-4); 62 (1-4); 63 (1-4); 64 (1-4)
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