Scholars Portal
2003-2025
Preserved
2025-09-02
Preserved : 39 (1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 4, 6); 52 (, 1 to 4, 6 to 12); 53 (, 1 to 12); 54 (, 2 to 15); 55 (, 1 to 15); 56 (, 1 to 15); 57 (, 1 to 15); 58 (, 1 to 15); 59 (, 1 to 15); 60 (, 1 to 4, 6 to 15); 61 (, 1 to 13); 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
Internet Archive
1988-2011
Preserved
2025-08-08
25 to 47
Portico
2003-2014
Preserved
2026-02-12
Preserved : 2003: 39(1-6), 2001/2004: 40(1-6), 2005: 41(1-6), 2006: 42(1-6), 2007: 43(1-6), 2008: 44(1-6), 2009: 45(1-6), 2010: 46(0-6), 2011: 47(0-6), 2012: 48(0-6), 2013: 49(0-6), 2014: 50(0-4)
LOCKSS Archive
2003-2024
Preserved
2026-02-09
39 to 60
CLOCKSS Archive
2003-2025
Preserved
2026-02-09
ahead-of-print, just-accepted, 39 to 62
LOCKSS Archive
2025-2025
In Progress
2026-02-09
61
Portico
2003-2026
Preserved
2026-02-12
Preserved : 2003: 39(1-6), 2004: 40(1-6), 2005: 41(1-6), 2006: 42(1-6), 2007: 43(1-6), 2008: 44(1-6), 2009: 45(1-6), 2010: 46(1-6), 2011: 47(1-6), 2012: 48(1-6), 2013: 49(1-6), 2014: 50(1-6), 2015: 51(1-6), 2016: 52(1-12), 2017: 53(1-12), 2018: 54(1-15), 2019: 55(1-15), 2020: 56(1-15), 2021: 57(1-15), 2022: 58(1-15), 2023: 59(1-15), 2024: 60(1-15), 2025: 61(1-15), 2026: 62(1-2)
National Digital Preservation Program, China
2003-2025
Preserved
2025-12-04
Preserved : 4 (1 to 6); 5 (sup1, 1 to 6); 6 (1 to 9, 11 to 15); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1, 2, 4 to 6); 44 (1, 2, 4 to 6); 45 (1 to 6); 46 (sup1, 1 to 6); 47 (sup1, 1, 2, 4 to 6); 48 (sup1, 1 to 5); 49 (sup1, 1 to 6); 51 (sup1, 1 to 6); 52 (1 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11 to 15); 55 (1 to 9, 11 to 15); 56 (1 to 9, 11 to 15); 57 (1 to 9, 11 to 15); 58 (1 to 9, 11 to 15); 59 (1 to 9, 11 to 14); 61 (1 to 4, 7)
Library of Congress
2010-2024
Preserved
2025-04-07
46 (sup1, 1 to 6); 47 (sup4, sup3, sup2, sup5, sup1, 1 to 6); 48 (sup4, sup1, sup3, sup2, sup5, 1 to 6); 49 (sup1, sup5, sup3, sup2, sup4, 1 to 6); 50 (sup2, sup5, sup1, sup6, sup4, sup3, 1 to 6); 51 (sup5, sup1, sup3, sup2, sup6, sup4, 1 to 6); 52 (1 to 12); 53 (1 to 12); 54 (1 to 15); 55 (1 to 15); 56 (1 to 15); 57 (1 to 15); 58 (1 to 15); 59 (1 to 15); 60 (1 to 15)