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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (none); 2; 3; 4; 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1); 9 (2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18; 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1); 26 (2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1, 2); 31 (1); 32 (2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1)
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Portico
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Preserved
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2026-04-23
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Preserved : 1986: 1, 1987: 2, 1989: 3, 1990: 4, 1991: 5(1-2), 1992: 6(1-2), 1993: 7(1-2), 1994: 8(1-2), 1995: 9(1-2), 1996: 10(1-2), 1997: 11(1-2)
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CLOCKSS Archive
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Preserved
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2026-04-27
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1 to 40
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Portico
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Preserved
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2026-04-23
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Preserved : 2001: 15(1)
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Portico
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Preserved
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2026-04-23
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Preserved : 2007: 21(2), 2008: 22(1-2), 2009: 23(1-2), 2010: 24(1-2), 2011: 25(1-2), 2012: 26(1-2), 2013: 27(1-2), 2014: 28(1-2), 2015: 29(1-2), 2016: 30(1-2), 2017: 31(1-2), 2018: 32(1-2), 2019: 33(1-2), 2020: 34(1-2), 2021: 35(1-2), 2022: 36(1-2), 2023: 37(1-2), 2024: 38(1-2), 2025: 39(1-2)
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Library of Congress
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Preserved
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2025-04-07
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15 (1); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1)
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