Scholars Portal
1985-2025
Preserved
2025-09-02
Preserved : 2 (3, 4); 3 (, 1, 2-3); 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 (, 1-4); 12 (, 1 to 3); 14 (, 1); 16 (, 3); 25 (, 1); 28 (, 1, 3, 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1, 3, 4); 33 (, 1 to 4); 34 (, 2 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 3); 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1997; 1998; 2007; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
Internet Archive
1991-2007
Preserved
2025-08-08
7 to 25
LOCKSS Archive
1982-2024
Preserved
2026-02-09
1 to 40
CLOCKSS Archive
1982-2025
Preserved
2026-02-09
1 to 41
LOCKSS Archive
2025-2025
In Progress
2026-02-09
41
Portico
1982-2011
Preserved
2026-02-12
Preserved : 1982/1983: 1(1-4), 1984/1985: 2(1-4), 1985/1986: 3(1-3), 1986/1987: 4(1-4), 1987/1988: 5(1-4), 1989/1990: 6(1-4), 1990/1991: 7(1-4), 1991/1992: 8(1-4), 1992/1993: 9(1-4), 1993/1994: 10(1-4), 1995: 11(1-4), 1995/1996: 12(1-4), 1996: 13(1-4), 1997: 14(1-4), 1997: 15(1-4), 1998/1999: 16(1-4), 1999/2000: 17(1-4), 2000/2001: 18(1-4), 2001/2002: 19(1-4), 2002/2003: 20(1-4), 2003: 21(1-4), 2004/2005: 22(1-4), 2005/2006: 23(1-4), 2006/2007: 24(1-4), 2007/2008: 25(1-4), 2008/2009: 26(1-4), 2010/2011: 27(1-2)
Portico
2012-2025
Preserved
2026-02-12
Preserved : 2012: 28(1-4), 2013: 29(1-4), 2014: 30(1-4), 2015: 31(1-4), 2016: 32(1-4), 2017: 33(1-4), 2018: 34(1-4), 2019: 35(1-4), 2020: 36(1-4), 2021: 37(1-4), 2022: 38(1-4), 2023: 39(1-4), 2024: 40(1-4), 2025: 41(1-4)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 14 (1 to 4); 15 (1-4); 16 (2 to 4); 17 (1 to 4); 18 (1 to 4); 19 (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, 2, 3-4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1)
Library of Congress
2011-2024
Preserved
2025-04-07
27 (1 to 3-4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4)