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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 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 8); 37 (1 to 10); 38 (1 to 10); 39 (1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1 to 12); 54 (1 to 12); 55 (1 to 12); 56 (1 to 4)
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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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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 48
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CLOCKSS Archive
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Preserved
|
2026-04-13
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1 to 56
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Portico
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Preserved
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2026-04-16
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Preserved : 1979: 9(1-4), 1980: 10(1-4), 1981/1982: 11(1-4), 1982: 12(1-4), 1983: 13(1-4), 1984: 14(1-4), 1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1988: 18(1-4), 1989: 19(1-4), 1990: 20(1-4), 1991: 21(1-4), 1992: 22(1-4), 1993: 23(1-4), 1994: 24(1-6), 1995: 25(1-6), 1996: 26(1-6), 1997: 27(2)
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Portico
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Preserved
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2026-04-16
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Preserved : 1998: 28(3, 5)
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Portico
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Preserved
|
2026-04-16
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Preserved : 2000: 30(1)
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Portico
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Preserved
|
2026-04-16
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Preserved : 2001: 31(1)
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Portico
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Preserved
|
2026-04-16
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Preserved : 2005: 35(3)
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Portico
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Preserved
|
2026-04-16
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Preserved : 2007: 37(5, 7-9)
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|
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Portico
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Preserved
|
2026-04-16
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Preserved : 2008: 38(10), 2009: 39(5, 12)
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|
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Portico
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Preserved
|
2026-04-16
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Preserved : 2012: 42(1, 6-7, 12), 2013: 43(1-12), 2014: 44(1-10, 12), 2015: 45(3-12), 2016: 46(1-12), 2017: 47(1-12), 2018: 48(1-12), 2019: 49(1-12), 2019/2020: 50(1-12), 2021: 51(1-12), 2022: 52(1-12), 2023: 53(1-12), 2024: 54(1-12), 2025: 55(1-2, 4-12), 2026: 56(1-4)
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LOCKSS Archive
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In Progress
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2026-04-13
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|
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49
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Library of Congress
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Preserved
|
2025-04-07
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|
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46 (6); 48 (2 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1 to 12); 54 (1 to 4, 7 to 11)
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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 : 3 (2 to 6); 4 (1 to 9, 11, 12); 5 (1 to 9, 11, 12); 27 (1 to 6); 28 (1 to 6); 29 (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 8); 37 (1 to 9); 38 (1 to 9); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12)
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|
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National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 3 (2 to 6); 4 (1 to 9, 11, 12); 5 (1 to 9, 11, 12); 27 (1 to 6); 28 (1 to 6); 29 (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 8); 37 (1 to 9); 38 (1 to 9); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12)
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|
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National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-8); 37 (1-10); 38 (1-10); 39 (1-12); 40 (1-12); 41 (1-12); 42 (1-12); 43 (1-12); 44 (1-12); 45 (1-12); 46 (1-12); 47 (1-12); 48 (1-12); 49 (1-12)
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