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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 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1/2, 3, 4); 8 (1-4); 9 (2 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1, 2, 3/4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1/2, 3/4); 21 (1, 2/3, 4); 22 (1, 2, 3/4); 23 (1 to 4); 24 (1, 2/3, 4); 25 (1/2, 3, 4); 26 (1 to 4); 27 (1, 2/3, 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 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); 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 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (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 27
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 64
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Portico
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Preserved
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2026-04-02
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Preserved : 1973: 11(4)
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Portico
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Preserved
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2026-04-02
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Preserved : 1975: 13(1)
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Portico
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Preserved
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2026-04-02
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Preserved : 1980: 18(2)
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Portico
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Preserved
|
2026-04-02
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Preserved : 1988: 24(1), 1988: 26(1)
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Portico
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Preserved
|
2026-04-02
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Preserved : 1993: 31(2)
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Portico
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Preserved
|
2026-04-02
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Preserved : 1997: 35(1-4), 1998: 36(1-4), 1999/2000: 37(1-4), 2000: 38(1-4), 2001: 39(1-4), 2002: 40(1-4), 2003: 41(1-4), 2004: 42(1-4), 2005: 43(1-4), 2006: 44(1-4), 2007: 45(1-4), 2008: 46(1-4), 2009: 47(1-4), 2010: 48(1-4), 2011: 49(1-4), 2012: 50(1-2, 4), 2013: 51(1-4), 2014: 52(1-4), 2015: 53(1-4), 2016: 54(1-4), 2017: 55(1-4), 2018: 56(1-4), 2019: 57(1-4), 2019/2020: 58(1-4), 2021: 59(1-4), 2022: 60(1-4), 2023: 61(1-4), 2024: 62(1-3), 2025: 63(1-4), 2026: 64(1)
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LOCKSS Archive
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In Progress
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2026-04-06
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50, 57
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LOCKSS Archive
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Preserved
|
2026-04-06
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51 to 56
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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 : 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (3); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4)
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Library of Congress
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Preserved
|
2025-04-07
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56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 3)
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National Digital Preservation Program, China
|
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Preserved
|
2025-10-23
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Preserved : 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 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 4); 61 (1 to 4); 62 (1 to 4)
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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 4); 5 (1 to 4); 6 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 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 4); 61 (1 to 4); 62 (1 to 4)
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