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Internet Archive
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Preserved
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2025-08-08
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1 to 26
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 31 (1 to 4, 7 to 10, 12); 32 (, 1 to 12); 33 (, 1, 2, 4 to 12); 34 (, 1 to 12); 35 (, 1 to 5, 7 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1, 3 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 13); 43 (, 1 to 13); 44 (, 1 to 13); 45 (, 1 to 13); 46 (, 1 to 13); 47 (, 1 to 13); 48 (, 1 to 13); 49 (, 1 to 13); 50 (, 1 to 13); 51 (, 1 to 13); 52 (, 1 to 16); 53 (, 1 to 16); 54 (, 1 to 14); 55 (, 1 to 13); 56 (, 1 to 6, 7-12, 13); 57 (, 1); 58 (, 1 to 13); 59 (, 1 to 7); 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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CLOCKSS Archive
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Preserved
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2026-02-09
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31 to 60
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 31(1-4, 7-10, 12), 1998: 32(1-12), 1999: 33(1-2, 4-12), 2000: 34(1-12), 2001: 35(1-5, 7-12), 2002: 36(1-12), 2003: 37(1-12), 2004: 38(1, 3-12), 2005: 39(1-12), 2006: 40(1-12), 2007: 41(1-12), 2008: 42(1-13), 2009: 43(1-13), 2010: 44(1-13), 2011: 45(1-13), 2012: 46(1-10, 12-13), 2013: 47(1, 3-7, 9, 11-13), 2014: 48(1-9, 11-12), 2015: 49(1, 3-13), 2016: 50(1-13), 2017: 51(1-13), 2018: 52(1-16), 2019/2020: 53(1-16), 2020: 54(1-14), 2021: 55(1, S 1, 2-13), 2022: 56(1-13), 2023: 57(1, 3-6, 10), 2024: 58(1, S 1, 2-7, 9, 11-13), 2025: 59(4-13), 2026: 60(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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46, 53
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LOCKSS Archive
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Preserved
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2026-02-09
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47 to 52
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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 : 17 (9); 31 (1-4, 7-10, 12); 32 (1-12); 33 (1, 2, 4-12); 34 (1-12); 35 (1-5, 7-12); 36 (1-5, 7-12); 37 (1-12); 38 (1, 3-12); 39 (1-12); 40 (1, 3-12); 41 (1, 2, 5-10, 12); 42 (1-13); 43 (1-13); 44 (1-13); 45 (1, 3-13); 46 (1-13); 47 (1-13); 48 (1-13); 49 (1-13); 50 (1-13); 51 (1-13); 52 (1-16); 53 (1-11)
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Library of Congress
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Preserved
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2025-04-07
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51 (13); 52 (1 to 16); 53 (1 to 16); 54 (1 to 14); 55 (1, S1, 2 to 13); 56 (1 to 7-12, 13); 57 (1 to 13); 58 (1 to 6)
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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 9, 11, 12); 31 (1 to 4, 7 to 9, 12); 32 (1 to 9, 11, 12); 33 (1, 2, 4 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 5, 7 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1, 3 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11 to 13); 43 (1 to 9, 11 to 13); 44 (1 to 9, 11 to 13); 45 (1 to 9, 11)
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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 9, 11, 12); 31 (1 to 4, 7 to 9, 12); 32 (1 to 9, 11, 12); 33 (1, 2, 4 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 5, 7 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1, 3 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11 to 13); 43 (1 to 9, 11 to 13); 44 (1 to 9, 11 to 13); 45 (1 to 9, 11)
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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 : 5 (1 to 9, 11 to 13); 45 (12, 13); 46 (1 to 9, 11 to 13); 47 (1 to 9, 11 to 13); 48 (1 to 9, 11 to 13); 49 (1 to 9, 11 to 13); 51 (1 to 9, 11 to 13); 52 (1 to 9, 11 to 16); 53 (1 to 9, 11 to 16); 54 (1 to 9, 11 to 14); 55 (Suppl 1, 1 to 9, 11 to 13); 56 (1 to 6, 7-12, 13); 58 (1 to 9, 11 to 13)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 5 (1 to 9, 11 to 13); 45 (12, 13); 46 (1 to 9, 11 to 13); 47 (1 to 9, 11 to 13); 48 (1 to 9, 11 to 13); 49 (1 to 9, 11 to 13); 51 (1 to 9, 11 to 13); 52 (1 to 9, 11 to 16); 53 (1 to 9, 11 to 16); 54 (1 to 9, 11 to 14); 55 (Suppl 1, 1 to 9, 11 to 13); 56 (1 to 6, 7-12, 13); 58 (1 to 9, 11 to 13)
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