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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54 (2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 60 (1, 2); 61 (1, 2); 62 (1 to 3); 63 (1, 2, 3-4); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 70 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3); 75 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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30 to 63
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LOCKSS Archive
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Preserved
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2026-04-13
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5, 6, 8, 10 to 27, 29 to 68
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CLOCKSS Archive
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Preserved
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2026-04-13
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5, 6, 8, 10 to 75
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Portico
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Preserved
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2026-04-16
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Preserved : 1982: 32(1), 1983: 33(1), 1984: 34(1), 1985: 35(1), 1986: 36(1), 1987: 37(1), 1988: 38(1), 1989: 39(1), 1990: 40(1), 1991: 41(1), 1992: 42(1), 1993: 43(1), 1994: 44(1), 1995: 45(1), 1996: 46(1), 1997: 47(1), 1998: 48(1), 1999: 49(1), 2000: 50(1), 2001: 51(1), 2002: 52(1), 2003: 53(1), 2004: 54(1-2), 2005: 55(1-2), 2006: 56(1-2), 2007: 57(1-2), 2008: 58(1-2), 2009: 59(1-2), 2010: 60(1-2), 2011: 61(1-2), 2012: 62(1-3), 2013: 63(1-4), 2014: 64(1-3), 2015: 65(1-3), 2016: 66(1-3), 2017: 67(1-3), 2018: 68(1-3), 2019: 69(1-3), 2019/2020: 70(1-3), 2021: 71(1-3), 2022: 72(1-3), 2023: 73(1-3), 2024: 74(1-3), 2025: 75(1-3)
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LOCKSS Archive
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In Progress
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2026-04-13
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69
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Library of Congress
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Preserved
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2025-04-07
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67 (3); 68 (1 to 3); 69 (1 to 3); 70 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (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); 6 (2); 7 (1 to 3); 47 (1); 48; 49; 51; 52; 53; 54 (2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 61 (1, 2); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3)
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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); 6 (2); 7 (1 to 3); 47 (1); 48; 49; 51; 52; 53; 54 (2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 61 (1, 2); 62 (1 to 3); 63 (1 to 3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 71 (1 to 3); 72 (1 to 3); 73 (1 to 3); 74 (1 to 3)
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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 : 47 (1); 48; 49; 50; 51; 52; 53; 54 (2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 60 (1, 2); 61 (1, 2); 62 (1-3); 63 (1, 2, 3-4); 64 (1-3); 65 (1, 3); 66 (1, 3); 67 (1-3); 68 (1-3); 69 (1-3)
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