Scholars Portal
1989-2025
Preserved
2025-09-02
Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1, 2-3, 4); 4 (, 1, 2, 3-4); 5 (, 1-3, 4); 6 (, 1-2, 3, 4); 7 (, 1, 2-4); 8 (, 1-2, 3, 4); 9 (, 1, 2, 3-4); 10 (, 1 to 4); 11 (, 1, 2); 15 (, 1 to 4); 16 (, 3 to 5); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1, 2, 5, 6); 20 (, 1 to 4, 5-6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 8); 25 (, 2 to 6, 7-8); 26 (, 1 to 8); 27 (, 1 to 8); 28 (, 1 to 8); 29 (, 1 to 8); 30 (, 1 to 8); 31 (, 1 to 8); 32 (, 1 to 6); 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
CLOCKSS Archive
1989-2025
Preserved
2026-02-09
ahead-of-print, just-accepted to 32
Portico
1989-1995
Preserved
2026-02-12
Preserved : 1989/1990/1991: 1(1-4), 1992/1993: 2(1-4), 1993/1994: 3(1-4), 1995: 4(1-2)
Portico
1997-2026
Preserved
2026-02-12
Preserved : 1997: 5(1-4), 1998/1999: 6(1-4), 1999: 7(1-4), 2000/2001: 8(1-4), 2002: 9(1-4), 2003: 10(1-4), 2004: 11(1-4), 2005: 12(1-4), 2006: 13(1-4), 2007: 14(1-4), 2008: 15(1-4), 2009: 16(1-6), 2010: 17(1-6), 2011: 18(1-6), 2012: 19(1-6), 2013: 20(1-6), 2014: 21(1-6), 2015: 22(1-6), 2016: 23(1-6), 2017: 24(1-8), 2018: 25(1-8), 2019: 26(1-8), 2020: 27(1-8), 2021: 28(1-8), 2022: 29(1-8), 2023: 30(1-8), 2024: 31(1-8), 2025: 32(1-8), 2026: 33(1)
LOCKSS Archive
1989-2024
Preserved
2026-02-09
1 to 31
CLOCKSS Archive
2008-2017
Preserved
2026-02-09
15 to 24
LOCKSS Archive
2025-2025
In Progress
2026-02-09
32
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 1 (1 to 4); 2 (1 to 4, 5-6); 3 (1 to 8); 5 (1-3, 4); 6 (1-2, 3, 4); 7 (1, 2-4); 8 (1-2, 3, 4); 9 (1, 2, 3-4); 11 (1, 2, 3-4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 8); 25 (1 to 6, 7-8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 8); 32 (1, 2, 4)
Library of Congress
2010-2024
Preserved
2025-04-07
17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 5-6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 8); 25 (1 to 7-8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 30 (1 to 8); 31 (1 to 8)