Scholars Portal
1973-2026
Preserved
2026-03-19
Preserved : 1 (2 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 3); 14 (1, 2); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 5); 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 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1, 2, 3-4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1, 2); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1, 2)
Internet Archive
1973-2014
Preserved
2025-08-08
1 to 42
CLOCKSS Archive
1973-2026
In Progress
2026-04-06
1 to 32, 34, 45 to 54
LOCKSS Archive
1973-2026
In Progress
2026-04-06
1 to 27, 29, 30, 37, 54
Portico
1973-2026
Preserved
2026-04-09
Preserved : 1973/1974: 1(1-4), 1974/1975: 2(1-4), 1975/1976: 3(1-4), 1976/1977: 4(1-4), 1977/1978: 5(1-4), 1978/1979: 6(1-4), 1979/1980: 7(1-4), 1980/1981: 8(1-4), 1981/1982: 9(1-4), 1982/1983: 10(1-4), 1983/1984: 11(1-4), 1984/1985: 12(1-4), 1985/1986: 13(1-4), 1986/1987: 14(1-4), 1987/1988: 15(1-4), 1988/1989: 16(1-4), 1989/1990: 17(1-4), 1990/1991: 18(1-4), 1991/1992: 19(1-4), 1992/1993: 20(1-5), 1993/1994: 21(1-4), 1994/1995: 22(1-4), 1995/1996: 23(1-4), 1996/1997: 24(1-4), 1997/1998: 25(1-4), 1998/1999: 26(1-4), 1999/2000: 27(1-4), 2000/2001: 28(1-4), 2001/2002: 29(1-4), 2002/2003: 30(1-4), 2003/2004: 31(1-4), 2004/2005: 32(1-4), 2005/2006: 33(1-4), 2006/2007: 34(1-4), 2007/2008: 35(1-4), 2008/2009: 36(1-4), 2009/2010: 37(1-4), 2010: 38(1-2), 2011: 39(1-4), 2012: 40(1-4), 2013: 41(1-4), 2014: 42(1-4), 2015: 43(1-4), 2016: 44(1-4), 2017: 45(1-4), 2018: 46(1-4), 2019: 47(1-4), 2020: 48(1-4), 2021: 49(1-4), 2022: 50(1-4), 2023: 51(1-4), 2024: 52(1-4), 2025: 53(1-4), 2026: 54(1-2)
LOCKSS Archive
2000-2025
Preserved
2026-04-06
28, 31 to 36, 38 to 53
CLOCKSS Archive
2005-2016
Preserved
2026-04-06
33, 35 to 44
Library of Congress
2010-2024
Preserved
2025-04-07
37 (3, 4); 38 (1, 2); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4)
National Library of the Netherlands
1973-2019
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 (1-3); 14 (1, 2); 15 (1-4); 16 (1, 2, 4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-5); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1, 3-4); 34 (1-4); 35 (1-4); 36 (1, 2, 4); 37 (1-4); 38 (1, 2); 39 (1, 2); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4)
British Library
-
Preserved
2019-09-18
Preserved : 42 (1 to 4), 43 (1 to 4), 44 (1 to 4), 45 (1 to 4), 46 (1 to 4)