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Scholars Portal
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Preserved
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2026-06-02
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1 to 6); 4 (1 to 6); 5 (1 to 5, 6-7, 8, 9-10, 11, 12); 6 (1 to 12); 7 (1 to 12); 8 (1 to 12); 9 (1 to 12); 10 (1 to 9, 10-11, 12); 11 (1 to 12); 12 (1 to 9, 10-12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12); 20 (1 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 3)
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Internet Archive
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Preserved
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2026-07-13
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1 to 7
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Portico
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Preserved
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2026-07-09
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Preserved : 1990: 1(1-4), 1991: 2(1-4), 1992: 3(1-6), 1993: 4(1-6), 1994: 5(1-12), 1995: 6(1-12), 1996: 7(1-12)
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CLOCKSS Archive
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Preserved
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2026-07-06
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1 to 37
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Portico
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Preserved
|
2026-07-09
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Preserved : 2001: 12(5)
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Portico
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Preserved
|
2026-07-09
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Preserved : 2003: 14(3)
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Portico
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Preserved
|
2026-07-09
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Preserved : 2005: 16(1, 7), 2006: 17(2, 7), 2007: 18(1, 5-8, 10, 12), 2008: 19(1-12), 2009: 20(1-12), 2010: 21(1-12), 2011: 22(1-12), 2012: 23(2-7, 9, 12), 2013: 24(1-9, 12), 2014: 25(1-10, 12), 2015: 26(1-12), 2016: 27(1-12), 2017: 28(1-12), 2018: 29(1-12), 2019: 30(1-12), 2020: 31(1-12), 2021: 32(1-12), 2022: 33(1-12), 2022/2023: 34(1-12), 2024: 35(1), 2025: 36(1), 2025: 37(1)
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LOCKSS Archive
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In Progress
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2026-07-06
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23, 30
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LOCKSS Archive
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Preserved
|
2026-07-06
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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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27 (10); 28 (9 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1); 36 (1)
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Scholars Portal
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Preserved
|
2026-06-02
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|
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Preserved : 33 (4 to 12); 34 (1 to 12); 35 (1); 36; 37
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 32 (2 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
|
|
|
Preserved : 32 (2 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
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|
|
Preserved : 1 (1 to 9, 12); 2 (Suppl 1, 1 to 9, 11, 12); 3 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 9 (1 to 9, 11, 12); 11 (1 to 9, 11, 12); 12 (1 to 9); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 1 (1 to 9, 12); 2 (Suppl 1, 1 to 9, 11, 12); 3 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 9 (1 to 9, 11, 12); 11 (1 to 9, 11, 12); 12 (1 to 9); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12)
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|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 8 (1-12); 9 (1-12); 10 (1-10, 12); 11 (1-12); 12 (1-10); 13 (1-12); 14 (1-12); 15 (1-12); 16 (1-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (supplement-1, 1-12); 21 (1-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1-12); 30 (1-10); 123 (3)
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