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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 5); 24 (1, 3 to 6); 25 (1 to 6); 26 (1 to 6); 27 (2 to 4, 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (2 to 6); 32 (1, 3 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 4, 6); 36 (1 to 3); 37 (2, 4); 39 (none); 40; 41
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Internet Archive
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Preserved
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2025-08-08
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1 to 30
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Portico
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Preserved
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2026-04-02
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Preserved : 1985: 1(1-4), 1986: 2(1-4), 1987: 3(1-4), 1988: 4(1-4), 1989: 5(1-4), 1990: 6(1-4), 1991: 7(1-4), 1992: 8(1-4), 1993: 9(1-4), 1994: 10(1-4), 1995: 11(1-4), 1996: 12(1-6), 1997: 13(1-6), 1998: 14(1-6)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 13, 16, 24 to 37, 39 to 42
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Portico
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Preserved
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2026-04-02
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Preserved : 2002: 18(3)
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Portico
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Preserved
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2026-04-02
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Preserved : 2007: 23(6), 2008: 24(1-6), 2009: 25(1-6), 2010: 26(1-6), 2011: 27(1-6), 2011/2012: 28(1-6), 2013: 29(1-6), 2013/2014: 30(1-6), 2014/2015: 31(1-6), 2015/2016: 32(1-6), 2016/2017: 33(1-6), 2018: 34(1-6), 2018/2019: 35(1-6), 2020: 36(1-6), 2021: 37(1-6), 2022: 38(1-6), 2024: 39, 2024: 40, 2025: 41, 2026: 42
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Library of Congress
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Preserved
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2025-04-07
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26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (2, 3, 6); 36 (1 to 3); 37 (2, 4); 39 (2023); 40 (( 2024))
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