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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 3); 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 3, 6); 15 (1 to 6); 16 (1, 2, 4 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 6); 24 (1_suppl, 2 to 6); 25 (1 to 6); 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 3, 4-5, 6); 35 (1 to 3, 4-5, 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (2 to 6); 40 (1 to 4, 5-6); 41 (1, 2)
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CLOCKSS Archive
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In Progress
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2026-04-06
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1 to 22, 31 to 41
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 17, 23, 24, 40, 41
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Portico
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Preserved
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2026-04-09
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Preserved : 1986: 1(1-4), 1987: 2(1-4), 1988: 3(1-4), 1989: 4(1-4), 1990: 5(1-4), 1991: 6(1-3), 1992: 7(1-4), 1993: 8(1-4), 1994: 9(1-4), 1995: 10(1-4), 1996: 11(1-4), 1997: 12(1-4), 1998: 13(1-4), 1999: 14(1-6), 2000: 15(1-6), 2001: 16(1-6), 2002: 17(1-6), 2003: 18(1-6), 2004: 19(1-6), 2005: 20(1-6), 2006: 21(1-6), 2007: 22(1-6), 2008: 23(1-6), 2009: 24(1-6), 2010: 25(1-6), 2011: 26(1-6), 2012: 27(1-6), 2013: 28(1-6), 2014: 29(1-6), 2015: 30(1-6), 2016: 31(1-6), 2017: 32(1-6), 2018: 33(1-6), 2019: 34(1-6), 2020: 35(1-6), 2021: 36(2-6), 2022: 37(1-6), 2023: 38(1-6), 2024: 39(1-6), 2025: 40(1-6), 2026: 41(1-2)
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LOCKSS Archive
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Preserved
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2026-04-06
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18 to 22, 25 to 39
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CLOCKSS Archive
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Preserved
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2026-04-06
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23 to 30
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Library of Congress
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Preserved
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2025-04-07
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25 (1 to 4, 6); 26 (1 to 5); 28 (1); 32 (1 to 4, 6); 33 (1 to 6); 34 (1, 3, 4-5, 6); 35 (1 to 4-5, 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (2)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-3); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-6); 15 (1-6); 16 (1-6); 17 (1-5); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-5); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-5); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-3, 4-5)
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British Library
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Preserved
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2019-09-18
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Preserved : 29 (1 to 6), 30 (1 to 6), 31 (1 to 6), 32 (1 to 6), 33 (1 to 5)
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