Scholars Portal
0000-2025
Preserved
2025-09-02
Preserved : 13 (3 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1, 2 to 4 to 6); 20 (, 1 to 6); 21 (, 1 to 3 to 5, 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 4 to 6); 26 (, 1 to 6); 27 (, 1, 2 to 4 to 6); 28 (, 1, 2 to 4 to 6); 29 (, 1 to 6); 30 (, 1 to 8); 31 (, 1 to 6); 32 (, 1 to 8); 33 (, 1 to 8); 34 (, 1 to 8); 35 (, 1 to 8); 36 (, 1 to 8); 37 (, 1 to 8); 38 (, 1 to 8); 39 (, 1 to 6); 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
Internet Archive
1994-1997
Preserved
2025-08-08
9 to 11
CLOCKSS Archive
1986-2025
In Progress
2026-02-09
1 to 18, 31 to 39
LOCKSS Archive
1986-2025
In Progress
2026-02-09
1 to 14, 39
Portico
1986-2026
Preserved
2026-02-12
Preserved : 1986/1987: 1(1-4), 1987/1988: 2(1-4), 1988/1989: 3(1-4), 1989/1990: 4(1-6), 1990/1991: 5(1-6), 1991/1992: 6(1-6), 1992/1993: 7(1-6), 1993/1994: 8(1-6), 1994/1995: 9(1-6), 1995/1996: 10(1-6), 1996/1997: 11(1-6), 1997/1998: 12(1-6), 1998/1999: 13(1-6), 1999/2000: 14(1-6), 2000/2001: 15(1-6), 2001/2002: 16(1-6), 2002/2003: 17(1-6), 2003/2004: 18(1-6), 2004/2005: 19(1-3, 3, S, 4-6), 2005/2006: 20(1-6), 2006/2007: 21(1-4, 4, S, 5-6), 2007/2008: 22(1-6), 2008/2009: 23(1-6, 6, S), 2009/2010: 24(1-6), 2010/2011: 25(1-5, 5, S, 6), 2011/2012: 26(1-6), 2012/2013: 27(1-3, 3, S, 4-6), 2013/2014: 28(1-3, 3, S, 4-6), 2014/2015: 29(1-6), 2015/2016: 30(1-8), 2017: 31(1-6), 2018: 32(1-8), 2019: 33(1-8), 2020: 34(1-8), 2021: 35(7-8), 2022: 36(1-8), 2023: 37(1-8), 2024: 38(1-8), 2025: 39(1-8), 2026: 40(1-3)
LOCKSS Archive
2000-2024
Preserved
2026-02-09
15 to 38
CLOCKSS Archive
2004-2016
Preserved
2026-02-09
19 to 30
Library of Congress
2010-2025
Preserved
2025-04-07
24 (5); 25 (5_suppl, 1 to 6); 27 (3_suppl, 3 to 6); 28 (3_suppl, 1 to 6); 29 (1 to 6); 30 (1 to 8); 31 (1 to 6); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1)
National Library of the Netherlands
1970-2019
Preserved
2024-12-15
Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-6); 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 (1-6); 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 (1-6); 24 (1-6); 25 (1-6); 26 (1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-8); 31 (1-6); 32 (1-8); 33 (1-7)
British Library
-
Preserved
2019-09-18
Preserved : 29 (3 to 6), 30 (1 to 8), 31 (1 to 6), 32 (1 to 8)