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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1, 2-3, 4 to 6); 66 (, 1, 2-3, 4 to 6); 67 (, 1); 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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14 to 51
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 33(1-4), 1992: 34(1-4), 1993: 35(1-4), 1994: 36(1-4), 1995: 37(1-4), 1996: 38(1-4), 1997: 39(1-4), 1998: 40(1-4), 1999: 41(1-4), 2000: 42(1-4), 2001: 43(1-4), 2002: 44(1-4), 2003: 45(1-4), 2004: 46(1-4), 2005: 47(1-6), 2006: 48(1-6), 2007: 49(1-6), 2008: 50(1-6), 2009: 51(1-6), 2010: 52(1-6), 2011: 53(1-6), 2012: 54(1-6), 2013: 55(1-6), 2014: 56(1-6), 2015: 57(1-6), 2016: 58(1-6), 2017: 59(1-6), 2018: 60(1-6), 2019: 61(1-6), 2020: 62(1-6), 2021: 63(1, 3-6), 2022: 64(1-6), 2023: 65(1-6), 2024: 66(1-6), 2025: 67(1-6), 2026: 68(1)
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CLOCKSS Archive
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In Progress
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2026-02-09
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42 to 47, 49 to 58, 60 to 67
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LOCKSS Archive
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In Progress
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2026-02-09
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42 to 44, 67
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LOCKSS Archive
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Preserved
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2026-02-09
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45 to 66
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CLOCKSS Archive
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Preserved
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2026-02-09
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48, 59
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Library of Congress
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Preserved
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2025-04-07
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52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1, 2-3, 4 to 6); 66 (1, 2-3, 4 to 6)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 67 (2-3, 4); 2025
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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 : 33 (1-4); 34 (1, 2, 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 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-6); 54 (1-6); 55 (2-6); 56 (1-6); 57 (1-6); 58 (1-6); 59 (1-6); 60 (1-6); 61 (1-5)
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