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