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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 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 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 (Supplement:, 1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1, 3 to 12); 34 (1 to 12); 35 (1 to 6); 36 (1, 3 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 3, 5, 6); 41 (1 to 5); 42 (1 to 3, 5, 6); 43 (1 to 6); 44 (1 to 6); 45 (1, 2, 4); 46 (6); 47 (1, 5, 6); 48 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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10 to 24
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Portico
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Preserved
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2026-04-02
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Preserved : 1979: 1(1-4), 1980: 2(1-4), 1981: 3(1-4), 1982: 4(1-4), 1983: 5(1-6), 1984: 6(1-6), 1985: 7(1-6), 1986: 8(1-6), 1987: 9(1-6), 1988: 10(1-6), 1989: 11(1-6), 1990: 12(1-6), 1991: 13(1-6), 1992: 14(1-12), 1993: 15(1-12), 1994: 16(1-12), 1995: 17(1-12), 1996: 18(1-12), 1997: 19(1-12), 1998: 20(1-12)
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Portico
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Preserved
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2026-04-02
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Preserved : 1999: 21(8)
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Portico
|
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Preserved
|
2026-04-02
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Preserved : 2000: 22(10), 2001: 23(3-4, 11-12), 2002: 24(3), 2003: 25(1, 6-12), 2004: 26(1-12), 2005: 27(1-12), 2006: 28(1-12), 2007: 29(1-12), 2007/2008: 30(1-12), 2008/2009: 31(1-12), 2009/2010: 32(1-12), 2010/2011: 33(1-12), 2011/2012: 34(1-12), 2013: 35(1-6), 2014: 36(1-6), 2014/2015: 37(1-6), 2016: 38(1-6), 2017: 39(1-6), 2018: 40(1-6), 2019: 41(1-6), 2020: 42(1-6), 2021: 43(1-6), 2022: 44(1-6), 2023: 45(1-6), 2024: 46(1-6), 2025: 47(1-6), 2026: 48(1-2)
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LOCKSS Archive
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Preserved
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2026-04-06
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27 to 46
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CLOCKSS Archive
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Preserved
|
2026-04-06
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30 to 40
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CLOCKSS Archive
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In Progress
|
2026-04-06
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41 to 47
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LOCKSS Archive
|
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In Progress
|
2026-04-06
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47, 48
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Scholars Portal
|
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Preserved
|
2026-03-19
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|
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Preserved : 39 (, 4)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 3 (1 to 9, 11, 12); 4 (1 to 6); 28 (1 to 9, 11, 12); 29 (suppl_1, 1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 6); 36 (1 to 6); 37 (1 to 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 5); 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 : 3 (1 to 9, 11, 12); 4 (1 to 6); 28 (1 to 9, 11, 12); 29 (suppl_1, 1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 6); 36 (1 to 6); 37 (1 to 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 5); 47 (1 to 6)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 1 (2-4); 2 (1, 3, 4); 3 (1-4); 4 (2-4); 5 (1-6); 6 (1-6); 7 (1-6); 8 (1-6); 9 (1-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-12); 15 (1-12); 16 (1-12); 17 (1-12)
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British Library
|
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Preserved
|
2019-09-18
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|
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Preserved : 36 (1 to 4; 6), 37 (1 to 6), 38 (1 to 6), 39 (1 to 4), 40 (3 to 6), 41 (1)
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