Scholars Portal
1974-2026
Preserved
2026-03-19
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 to 4); 8 (1 to 4); 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 4); 25 (1 to 4); 26 (1 to 4); 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 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 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 3, 5 to 12); 52 (1 to 12); 53 (1 to 4)
Internet Archive
1974-2015
Preserved
2025-08-08
1 to 42
Portico
1974-2026
Preserved
2026-04-09
Preserved : 1974: 1(1-4), 1975: 2(1-4), 1976: 3(1-4), 1977: 4(1-4), 1978: 5(1-4), 1979: 6(1-4), 1980: 7(1-4), 1981: 8(1-4), 1982: 9(1-4), 1983: 10(1-4), 1984: 11(1-4), 1985: 12(1-4), 1986: 13(1-4), 1987: 14(1-4), 1988: 15(1-4), 1989: 16(1-4), 1990: 17(1-4), 1991: 18(1-4), 1992: 19(1-4), 1993: 20(1-4), 1994: 21(1-4), 1995: 22(1-4), 1996: 23(1-4), 1997: 24(1-4), 1998: 25(1-4), 1999: 26(1-4), 2000: 27(1-6), 2001: 28(1-6), 2002: 29(1-6), 2003: 30(1-6), 2004: 31(1-6), 2005: 32(1-6), 2006: 33(1-6), 2007: 34(1-12), 2008: 35(1-12), 2009: 36(1-12), 2010: 37(1-12), 2011: 38(1-12), 2012: 39(1-12), 2013: 40(1-12), 2014: 41(1-12), 2015: 42(1-12), 2016: 43(1-12), 2017: 44(1-12), 2018: 45(1-12), 2019: 46(1-12), 2020: 47(1-12), 2021: 48(1-2, 5, 8-12), 2022: 49(1-12), 2023: 50(1-12), 2024: 51(1-12), 2025: 52(1-12), 2026: 53(1-5)
CLOCKSS Archive
1979-2026
In Progress
2026-04-06
6 to 31, 44 to 53
LOCKSS Archive
1979-2026
In Progress
2026-04-06
6 to 26, 28, 29, 53
LOCKSS Archive
2000-2025
Preserved
2026-04-06
27, 30 to 52
CLOCKSS Archive
2005-2016
Preserved
2026-04-06
32 to 43
Library of Congress
2010-2025
Preserved
2025-04-07
37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (2, 3, 5 to 12); 45 (2 to 4, 6 to 11); 46 (2 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1, 3)
National Library of the Netherlands
1974-2019
Preserved
2024-12-15
Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-12); 35 (1-12); 36 (2-12); 37 (1-12); 38 (1-9); 39 (1-12); 40 (1-12); 41 (1-12); 42 (1-7, 10, 12); 43 (1-12); 44 (1-12); 45 (1-12); 46 (1-11)
British Library
-
Preserved
2019-09-18
Preserved : 41 (1 to 12), 42 (1 to 12), 43 (1 to 12), 44 (1 to 12), 45 (1 to 11)