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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 24 (1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1, 2, 3-4); 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 5); 60 (, 1, 4, 5); 61 (, 1 to 5); 62 (, 1 to 5); 63 (, 1 to 3, 5); 64 (, 3 to 5); 65 (, 1 to 5); 66 (, 1 to 5); 67 (, 1 to 5); 68 (, 1 to 5); 69 (, 1 to 5); 70 (, 1 to 5); 71 (, 1 to 5); 72 (, 1 to 5); 73 (, 1 to 4); 1976; 1977; 1978; 1979; 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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1 to 62
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LOCKSS Archive
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Preserved
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2026-02-09
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24 to 72
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print, 24 to 73
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LOCKSS Archive
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In Progress
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2026-02-09
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73
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 45(1-4), 1998: 46(1-4), 1999: 47(1-4), 2000: 48(1-4), 2001: 49(1-4), 2002: 50(1-2), 2003: 51(1-4), 2004: 52(1-4), 2005: 53(1-4), 2006: 54(1-4), 2007: 55(1-4), 2008: 56(1-4), 2009: 57(1-4), 2010: 58(1-4), 2011: 59(1-5), 2012: 60(1-5), 2013: 61(1-5), 2014: 62(1-5), 2015: 63(1-5), 2016: 64(1-5), 2017: 65(1-5), 2018: 66(1-5), 2019: 67(1-5), 2020: 68(1-5), 2021: 69(1-5), 2022: 70(1-5), 2023: 71(1-5), 2024: 72(1-5), 2025: 73(1-5), 2026: 74(1)
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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, 2, 3-4); 6 (1 to 5); 7 (1 to 5); 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 5); 61 (1 to 5); 62 (1 to 5); 63 (1 to 5); 64 (1 to 5); 65 (1 to 5); 66 (1 to 5); 67 (1 to 5); 68 (1 to 5); 69 (1 to 5); 71 (1 to 5); 72 (1 to 5); 73 (1, 2)
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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, 2); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 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, 2, 3-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1, 3, 4); 56 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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58 (1 to 4); 59 (1 to 5); 60 (1 to 5); 61 (1 to 5); 62 (1 to 5); 63 (1 to 5); 64 (1 to 5); 65 (1 to 5); 66 (1 to 5); 67 (1 to 5); 68 (1 to 5); 69 (1 to 5); 70 (1 to 5); 71 (1 to 5); 72 (1 to 5)
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