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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 15 (1 to 6); 16 (1 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 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 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 4, 5-6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 50 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 6)
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Internet Archive
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Preserved
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2025-08-08
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1 to 42
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Portico
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Preserved
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2026-04-02
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Preserved : 1988: 24(3)
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Portico
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Preserved
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2026-04-02
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Preserved : 1997: 33(1-6), 1998: 34(1-6), 1999: 35(1-6), 2000: 36(1-6), 2001: 37(1-6), 2002: 38(1-6), 2003: 39(1-6), 2004: 40(1-6), 2005: 41(1-6), 2006: 42(1-6), 2007: 43(1-6), 2008: 44(1-6), 2009: 45(1-6), 2010/2011: 46(1-6), 2011/2012: 47(1-6), 2012/2013: 48(1-3, 6), 2013/2014: 49(1-6), 2014: 50(1-5), 2015/2016: 51(1-6), 2016/2017: 52(1-6), 2017/2018: 53(1-6), 2018/2019: 54(1-6), 2019/2020: 55(1-6), 2020/2021: 56(1-6), 2021/2022: 57(1-6), 2022/2023: 58(1-6), 2023/2024: 59(1-6), 2024/2025: 60(1-4, 6), 2025/2026: 61(2-6)
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LOCKSS Archive
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In Progress
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2026-04-06
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48, 55
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LOCKSS Archive
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Preserved
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2026-04-06
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49 to 54
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Library of Congress
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Preserved
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2025-04-07
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53 (6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (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 : 4 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 5); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 5)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 4 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 5); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 5)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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|
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Preserved : 4 (1 to 6); 5 (1 to 6); 6 (1 to 5); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 4, 5-6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
|
|
|
Preserved : 4 (1 to 6); 5 (1 to 6); 6 (1 to 5); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 4, 5-6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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|
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Preserved : 36 (5, 6); 37 (1-5); 38 (1-6); 39 (1-6); 40 (1-6); 41 (2-6); 42 (1-6); 43 (1, 3-6); 44 (1-6); 45 (1-6); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-6); 54 (1-6); 55 (1-3)
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