Scholars Portal
1985-2025
Preserved
2026-03-19
Preserved : 3 (1 to 4); 4 (1-2, 3, 4); 5 (1 to 4); 6 (1, 2, 3-4); 7 (1, 2-3, 4); 8 (1, 2); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1-2); 25; 26; 27; 29 (2); 30 (1, 2); 31; 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2)
Internet Archive
2004-2005
Preserved
2025-08-08
23 to 24
Portico
2006-2007
Preserved
2026-04-02
Preserved : 2006: 23(2), 2006: 24(1-2), 2007: 25(1-2), 2007: 26(1-2)
LOCKSS Archive
1983-2024
Preserved
2026-03-30
1 to 43
CLOCKSS Archive
1983-2025
Preserved
2026-03-30
1 to 44
LOCKSS Archive
2025-2025
In Progress
2026-03-30
44
Portico
1993-2004
Preserved
2026-04-02
Preserved : 1993: 11(1), 1995: 12(1), 1995: 13(1), 1996: 14(1), 1997: 15(1-2), 1997/1998: 16(1-2), 1998/1999: 17(1-2), 1999: 18(1-2), 2000/2001: 19(1-2), 2001/2002: 20(1-2), 2003: 21(1-2), 2004: 22(1-2), 2004: 23(1-2)
Portico
2008-2025
Preserved
2026-04-02
Preserved : 2008: 27(1-2), 2009: 28(1-2), 2010: 29(1-2), 2011: 30(1-2), 2012: 31(1-2), 2013: 32(1-2), 2014: 33(1-2), 2015: 34(1-2), 2016: 35(1-2), 2017: 36(1-2), 2018: 37(1-2), 2019: 38(1-2), 2020: 39(1-2), 2021: 40(1-2), 2022: 41(1-2), 2023: 42(1-2), 2024: 43(1-2), 2025: 44(1-2)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 2 (1, 2); 3 (1, 2); 4 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1-2); 25; 26; 27 (2); 28 (1, 2); 29 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1)
Library of Congress
2017-2024
Preserved
2025-04-07
36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2)