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