CLOCKSS Archive
1995-2007
Preserved
2026-02-09
8 to 20
Portico
1995-2007
Preserved
2026-02-12
Preserved : 1995: 8(1-12), 1996: 9(1-12), 1997: 10(1-12), 1998: 11(1-12), 1999: 12(1-12), 2000: 13(1-12), 2001: 14(1-12), 2002: 15(1-12), 2003: 16(1-12), 2004: 17(1-12), 2005: 18(1-12), 2006: 19(1-12), 2007: 20(1-12)
Scholars Portal
1995-2007
Preserved
2025-09-02
Preserved : 8 (1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 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); 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007
Internet Archive
1993-2011
Preserved
2025-08-08
6 to 24
CLOCKSS Archive
2010-2012
Preserved
2026-02-09
23 to 25
Portico
1988-2026
Preserved
2026-02-12
Preserved : 1988: 1(1-4_Pt_1), 1989: 2(2_Pt_2, 4, 7-11_Pt_1), 1990: 3(4-9, 11, 11, S), 1991: 4(2_Pt_1-3_Pt_1, 5_Pt_1-6, 8-12_Pt_1), 1992: 5(1-3, 4, S, 4_Pt_1-11), 1993: 6(1-2, 4, 7_Pt_1-12), 1994: 7(1-6, 8, 11-12), 1995: 8(1-3, 5-12), 1996: 9(1-12), 1997: 10(1-12), 1998: 11(1, S 1, 2, S 2, S 3, 5-6, S 6, 7-8, S 8, 9-12), 1999: 12(11), 2000: 13(1, S 1, 2-3, S 3, 4, S 4, 5-12), 2001: 14(1-12), 2002: 15(1-2, S 2, 3-4, S 4, 5, S 5, 6-12), 2003: 16(1-12), 2004: 17(1-12), 2005: 18(1-12), 2006: 19(1-12), 2007: 20(1-12), 2008: 21(1-12), 2009: 22(1-12), 2010: 23(1-12), 2011: 24(1-12), 2012: 25(1-12), 2012/2013: 26(1-12), 2014: 27(1-12), 2014/2015: 28(1-12), 2015/2016: 29(1-12), 2017: 30(1-12), 2018: 31(1-12), 2019: 32(1-12), 2020: 33(1-12), 2021: 34(1-12), 2022: 35(1-12), 2023: 36(1-12), 2024: 37(1-12), 2025: 38(1-12), 2026: 39(1-2)
CLOCKSS Archive
2008-2015
Preserved
2026-02-09
21 to 28
LOCKSS Archive
2008-2024
Preserved
2026-02-09
21 to 37
CLOCKSS Archive
2016-2025
In Progress
2026-02-09
29 to 38
LOCKSS Archive
2025-2025
In Progress
2026-02-09
38
Portico
2011-2012
Preserved
2026-02-12
Preserved : 2011: 24(12), 2012: 25(1-12)
National Digital Preservation Program, China
0000-2025
Preserved
2025-10-23
Preserved : ; 2 (1 to 9, 11, 12); 3 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (S1, 1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (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 9, 11, 12); 36 (1 to 6, 8, 9, 11, 12); 37 (1 to 4, 6 to 8, 12); 38 (1, 2, 4 to 6, 8, 9)
National Digital Preservation Program, China
0000-2025
Preserved
2025-12-04
Preserved : ; 2 (1 to 9, 11, 12); 3 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (S1, 1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (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 9, 11, 12); 36 (1 to 6, 8, 9, 11, 12); 37 (1 to 4, 6 to 8, 12); 38 (1, 2, 4 to 6, 8, 9)
National Digital Preservation Program, China
2019-2019
Preserved
2025-12-04
Preserved : 32 (12)
National Library of the Netherlands
1995-2007
Preserved
2024-12-15
Preserved : 8 (1-3-5-11, 12P1); 9 (1-12); 10 (1-12); 11 (1-3-5-12); 12 (1-12); 13 (1-12); 14 (1-12); 15 (1-12); 16 (1-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (1-12); 49 (4S1)
British Library
-
Preserved
2019-09-18
Preserved : 27 (1 to 9; 11 to 12), 28 (1 to 7; 9 to 12), 29 (1 to 11), 30 (5 to 10), 31 (1 to 3; 6 to 11), 32 (1 to 4)