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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 16(1-4), 2000: 17(1-4), 2001: 18(1-4), 2002: 19(1-4), 2003: 20(1-4), 2004: 21(1-4), 2005: 22(1-4), 2006: 23(1-4), 2007: 24(1-4), 2008: 25(1-4), 2009: 26(1-4), 2010: 27(1-4), 2011: 28(1-4)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1, 2, 3-4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 39 (, 1, 2, 4); 40 (, 1, 4); 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2022; 2023
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Internet Archive
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Preserved
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2025-08-08
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4 to 9
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 37, 39, 40
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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 16(1-4), 2000: 17(1-4), 2001: 18(1-4), 2002: 19(1-4), 2003: 20(1-4), 2004: 21(1-4), 2005: 22(1-4), 2006: 23(1-4), 2007: 24(1-4), 2008/2012: 25(1-4), 2012: 26(1-4), 2012: 27(1-4), 2012: 28(1-4), 2012/2013: 29(1-4), 2013: 30(1-4), 2014: 31(1-4), 2015: 32(1-4), 2016: 33(1-4), 2017/2018: 34(1-4), 2018: 35(1-4), 2019: 36(1-4), 2020: 37(1-4), 2021: 38(1-4), 2022: 39(1-4), 2023: 40(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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27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 3); 35 (1 to 4); 36 (1, 2, 4); 37 (3); 39 (1 to 4); 40 (1, 4)
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