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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 57 (2, 3); 58 (1 to 3); 59 (1 to 3); 60 (1 to 3); 61 (1, 2-3); 62 (1-2, 3); 63 (1, 2-3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 70 (1 to 3); 71 (1, 2); 72 (1 to 3); 73 (1 to 3); 74 (1, 2); 75 (3); 76 (1 to 3); 77 (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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45 to 63
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CLOCKSS Archive
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Preserved
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2026-04-13
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47 to 56, 58 to 60, 63 to 77
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Portico
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Preserved
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2026-04-16
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Preserved : 1990: 47(1-3), 1991: 48(1-3), 1992: 49(1-3), 1993: 50(1-3), 1994: 51(1-3), 1995: 52(1-3), 1996: 53(1-3), 1997: 54(1-3), 1998: 55(1-3), 1999: 56(1-3), 2000: 57(1-3), 2001: 58(1-3), 2002: 59(1-3), 2003: 60(1-3), 2004: 61(1-3), 2005: 62(1-3), 2006: 63(1-3), 2007: 64(1-3), 2008: 65(1-3), 2009: 66(1-3), 2010: 67(1-3), 2011: 68(2), 2012: 69(1-3), 2013: 70(1-3), 2014: 71(1-3), 2015: 72(1-3), 2015/2016: 73(1-3), 2016/2017: 74(1-3), 2017/2018: 75(1-3), 2019: 76(1-3), 2019/2020: 77(1-3)
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Public Knowledge Project PLN
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Preserved
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2026-04-20
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Preserved : 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3); 60 (1 to 3); 61 (1, 2-3); 62 (1-2, 3); 63 (1, 2-3); 64 (1 to 3); 65 (1 to 3); 66 (1 to 3); 67 (1 to 3); 68 (1 to 3); 69 (1 to 3); 70; 71; 72 (1 to 3); 73 (1, 2); 74 (3); 75 (1 to 3); 76 (1 to 3); 77 (1 to 3); 78; 79; 82; 83
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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, 3); 77 (1 to 3)
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