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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 25 (2); 26 (1 to 3); 27 (sup1, 1 to 3); 28 (1 to 4); 29 (sup1, 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 (1 to 3); 39 (1); 41 (2); 43 (1 to 4); 44 (2); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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1 to 43
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CLOCKSS Archive
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Preserved
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2026-03-30
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ahead-of-print, 25 to 60
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LOCKSS Archive
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Preserved
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2026-03-30
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25 to 60
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Portico
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Preserved
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2026-04-02
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Preserved : 1990: 25(1-2), 1991: 26(1-3), 1992: 27(1-3), 1993: 28(1-3), 1994: 29(1-3), 1995: 30(1-3), 1996: 31(1-3), 1997: 32(1-3), 1998: 33(1-3), 1999: 34(1-3), 2000: 35(1-3), 2001: 36(1-3), 2002: 37(1-3), 2003: 38(1-3), 2004: 39(1-3), 2005: 40(1-4), 2006: 41(1-4), 2007: 42(1-4), 2008: 43(1-4), 2009: 44(1-4), 2010: 45(1-4), 2011: 46(1-4), 2012: 47(1-4), 2013: 48(1-4), 2014: 49(1-4), 2015: 50(1-4), 2016: 51(1-4), 2017: 52(1-4), 2018: 53(1-4), 2019: 54(1-4), 2020: 55(1-4), 2021: 56(1-4), 2022: 57(1-4), 2023: 58(1-4), 2024: 59(1-4), 2025: 60(1-3)
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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 : 4 (2 to 4); 5 (1 to 4); 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 (1 to 3); 39 (1 to 3); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 3)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 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 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1-3); 27 (1-3); 28 (1-4); 29 (1-3); 30 (1-3); 31 (1-3); 32 (1, 3); 33 (2, 3); 34 (1-3); 35 (1-3); 36 (1-3); 37 (1-3); 38 (1-3); 39 (1-3); 40 (1, 2, 4); 41 (1-4); 42 (1-4); 43 (1-4); 83 (3)
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Library of Congress
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Preserved
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2025-04-07
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45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 3)
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