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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 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 30 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 40 (1 to 8); 41 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 27
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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(1-4), 1992: 7(1-4), 1993: 8(1-4), 1994: 9(1-4), 1995: 10(1-4), 1996: 11(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 41
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Portico
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Preserved
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2026-04-09
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Preserved : 1999: 14(3)
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Portico
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Preserved
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2026-04-09
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Preserved : 2005: 20(2, 4), 2006: 21(2)
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Portico
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Preserved
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2026-04-09
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Preserved : 2007: 22(3-4, 8), 2008: 23(4-6, 8), 2009: 24(1-8), 2010: 25(1-8), 2011: 26(1-8), 2012: 27(2-4, 8), 2013: 28(1-7), 2014: 29(1-8), 2015: 30(3-8), 2016: 31(1-8), 2017: 32(1-8), 2018: 33(1-8), 2019: 34(1-8), 2019/2020: 35(1-8), 2021: 36(1-8), 2022: 37(1-8), 2023: 38(1-8), 2024: 39(1-8), 2025: 40(1-8), 2026: 41(1-2)
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LOCKSS Archive
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In Progress
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2026-04-06
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27, 34
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LOCKSS Archive
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Preserved
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2026-04-06
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28 to 33
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Library of Congress
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Preserved
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2025-04-07
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31 (4); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 7)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1 to 6); 3 (1 to 8); 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 6); 19 (1 to 6); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2 (1 to 6); 3 (1 to 8); 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 6); 19 (1 to 6); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8)
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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 : 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-6); 19 (1-6); 20 (1-6); 21 (2-8); 22 (1-8); 23 (1-8); 24 (1-4, 6-8); 25 (1-8); 26 (1-8); 27 (1-8); 28 (1-8); 29 (1-8); 30 (1-8); 31 (1-8); 32 (1-8); 33 (1-8); 34 (1-8)
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