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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 45 (1 to 4); 46 (, 1); 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); 60 (, 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 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 4); 77 (, 1 to 4); 78 (, 1, 3, 4); 79 (, 1 to 4); 80 (, 1 to 4); 81 (, 1, 3, 4); 82 (, 1 to 4); 83 (, 1 to 4); 84 (, 1, 2, 3-4); 85 (, 1 to 4); 86 (, 1 to 4); 87 (, 1 to 4); 88 (, 1 to 4); 89 (, 1 to 4); 90 (, 1 to 4); 91 (, 1 to 3); 1979; 1980; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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31 to 80
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LOCKSS Archive
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Preserved
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2026-02-09
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45 to 90
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CLOCKSS Archive
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Preserved
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2026-02-09
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45 to 92
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LOCKSS Archive
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In Progress
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2026-02-09
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91
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Portico
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Preserved
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2026-02-12
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Preserved : 1980: 46(1-4), 1981: 47(1-4), 1982: 48(1-4), 1983: 49(1-4), 1984: 50(1-4), 1985: 51(1-4), 1986: 52(1-4), 1987: 53(1-4), 1988: 54(1-4), 1989: 55(1-4), 1990: 56(1-4), 1991: 57(1-4), 1992: 58(1-4), 1993: 59(1-4), 1994: 60(1-4), 1995: 61(1-4), 1996: 62(1-4), 1997: 63(1-4), 1998: 64(1-4), 1999: 65(1-4), 2000: 66(1-4), 2001: 67(1-4), 2002: 68(1-4), 2003: 69(1-4), 2004: 70(1-4), 2005: 71(1-4), 2006: 72(1-4), 2007: 73(1-4), 2008: 74(1-4), 2009: 75(1-4), 2010: 76(1-4), 2011: 77(1-4), 2012: 78(1-4), 2013: 79(1-4), 2014: 80(1-4), 2015: 81(1-4), 2016: 82(1-4), 2017: 83(1-4), 2018: 84(1-4), 2019: 85(1-4), 2020: 86(1-4), 2021: 87(1-4), 2022: 88(1-4), 2023: 89(1-4), 2024: 90(1-4), 2025: 91(1-4), 2026: 92(1)
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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 : 1 (1-4); 2 (1-6); 3 (1-6); 4 (1-4, 6); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1); 10; 11 (2-4); 12 (1-4); 13 (1-3); 14 (1-4); 15 (1-3); 16 (1-4); 17 (1-3); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1, 2-3, 4); 22 (1-4); 23 (1-4); 24 (1, 3, 4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 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); 65 (1-4); 66 (1-4); 67 (1-4); 68 (1-4); 69 (1-4); 70 (1-4); 71 (1-4); 72 (1-4); 73 (1-4); 74 (1-4)
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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 : 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1, 2, 3-4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 91 (1)
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Library of Congress
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Preserved
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2025-04-07
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76 (2 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1 to 4); 80 (1 to 4); 81 (1 to 4); 82 (1 to 4); 83 (1 to 4); 84 (1 to 3-4); 85 (1 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 90 (1 to 4)
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