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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 3); 2 (1 to 3); 3 (1 to 3); 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 (Suppl., 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 3, 4-5); 18 (1 to 5); 19 (1 to 5); 20 (1 to 5); 21 (1 to 5); 22 (1 to 5); 23 (1 to 5); 24 (1 to 5); 25 (1 to 5); 26 (1 to 5); 27 (1 to 5); 28 (1 to 5); 29 (1 to 5); 30 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 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 37
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Portico
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Preserved
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2026-04-09
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Preserved : 1990: 1(1-3), 1991: 2(1-3), 1992: 3(1-3), 1993: 4(1-4), 1994: 5(1-4), 1995: 6(1-4), 1996: 7(1-4), 1997: 8(1-4), 1998: 9(1-4), 1999: 10(1-4), 2000: 11(1-4), 2001: 12(1-4), 2002: 13(1-4), 2003: 14(1-4), 2004: 15(1-4), 2005: 16(1-4), 2006: 17(1-5), 2007: 18(1-5), 2008: 19(1-5), 2009: 20(1-5), 2010: 21(1-5), 2011: 22(1-5), 2012: 23(1-5), 2013: 24(1-3), 2014: 25(1-5), 2015: 26(2-5), 2016: 27(1-5), 2017: 28(1-5), 2018: 29(1-5), 2019: 30(1-5), 2019/2020: 31(1-5), 2021: 32(1-5), 2022: 33(1-5), 2023: 34(1-5), 2024: 35(1-4), 2025: 36(1-5), 2026: 37(1)
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LOCKSS Archive
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In Progress
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2026-04-06
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23, 30
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LOCKSS Archive
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Preserved
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2026-04-06
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24 to 29
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Library of Congress
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Preserved
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2025-04-07
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28 (5); 29 (1 to 5); 30 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 4)
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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 : 1 (1 to 4); 2 (1 to 5); 3 (1 to 5); 8 (1 to 4); 9 (Suppl 1, 1 to 4); 11 (Suppl 1, 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 5); 19 (1 to 5); 21 (1 to 5); 22 (1 to 5); 23 (1 to 5); 24 (1 to 5); 25 (1 to 5); 26 (1 to 5); 27 (1 to 5); 28 (1 to 5); 29 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5)
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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 : 1 (1 to 4); 2 (1 to 5); 3 (1 to 5); 8 (1 to 4); 9 (Suppl 1, 1 to 4); 11 (Suppl 1, 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 5); 19 (1 to 5); 21 (1 to 5); 22 (1 to 5); 23 (1 to 5); 24 (1 to 5); 25 (1 to 5); 26 (1 to 5); 27 (1 to 5); 28 (1 to 5); 29 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5)
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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 : 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-3, 4-5); 18 (1-5); 19 (1-5); 20 (2-5); 21 (1-5); 22 (1-5); 23 (1-5); 24 (1-5); 25 (1-5); 26 (1-5); 27 (1-5); 28 (1-5); 29 (1-5); 30 (1-4)
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