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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; 6; 7 (1, 2); 8 (1, 2); 9 (01, 2); 10 (1, 2); 11 (1, 2); 12 (1, 02); 13 (1, 2); 14 (01, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1-2); 24 (2, 3); 25 (1, 2); 38; 39 (3)
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LOCKSS Archive
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Preserved
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2026-04-27
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Portico
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Preserved
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2026-04-23
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Preserved : 2005: 20(1-2), 2006: 21(1-2), 2007: 22(1-2), 2008: 23(1-2), 2009: 24(1-3), 2010: 25(1-2), 2011: 26(1-3), 2012: 27(1-3), 2013: 28(1-3), 2014: 29(1-3), 2015: 30(1-3), 2016: 31(1-3), 2017: 32(1-3), 2018: 33(1-3), 2019: 34(1-3), 2020: 35(1), 2021: 36(1), 2022: 37(1-3), 2023: 38(1-3), 2024: 39(1-3)
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LOCKSS Archive
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Preserved
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2026-04-27
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20 to 30
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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, 1988: 3, 1989: 4, 1990: 5, 1991: 6, 1992: 7(1-2), 1993: 8(1-2), 1994: 9(1-2), 1995: 10(1-2), 1996: 11(1-2), 1997: 12(1-2), 1998: 13(1-2), 1999: 14(1-2), 2000: 15(1-2), 2001: 16(1-2), 2002: 17(1-2), 2003: 18(1-2), 2004: 19(1-2), 2005: 20(1-2), 2006: 21(1-2), 2007: 22(1-2), 2008: 23(1-2), 2009: 24(1-3), 2010: 25(1-2), 2011: 26(1-3), 2012: 27(1-3), 2013: 28(1-3), 2013/2014: 29(1-3), 2014/2015: 30(1-3), 2016: 31(1-3), 2017: 32(1-3), 2018: 33(1-3), 2019: 34(1-3), 2020: 35(1-3), 2021: 36(1-3), 2022: 37(1-3), 2023: 38(1-2), 2024: 39(1-3), 2025: 40(2-3)
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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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Library of Congress
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Preserved
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2025-04-07
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29 (1 to 3); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (2)
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