Scholars Portal
1978-2025
Preserved
2025-09-02
Preserved : 1 (1 to 3); 2 (, 1 to 3); 3 (, 1); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 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); 20 (, 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 5); 28 (, 1 to 5); 29 (, 1 to 5); 30 (, 1 to 5); 31 (, 1-2, 3 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1, 2, 4 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 5); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1, 3 to 6); 42 (, 1 to 7); 43 (, 1 to 7); 44 (, 1 to 4, 5-6, 7); 45 (, 1 to 7); 46 (, 1 to 7); 47 (, 1 to 7); 48 (, 1 to 7); 1978; 1979; 1980; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 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
Internet Archive
1990-2006
Preserved
2025-08-08
13 to 29
LOCKSS Archive
1978-2024
Preserved
2026-02-09
1 to 47
CLOCKSS Archive
1978-2025
Preserved
2026-02-09
ahead-of-print to 49
LOCKSS Archive
2025-2025
In Progress
2026-02-09
48
Portico
1997-2026
Preserved
2026-02-12
Preserved : 1997: 20(1-4), 1998: 21(1-4), 1999: 22(1-4), 2000: 23(1-4), 2001: 24(1-4), 2002: 25(1-4), 2003: 26(1-4), 2004: 27(1-5), 2005: 28(1-5), 2006: 29(1-5), 2007: 30(1-5), 2008: 31(1-6), 2009: 32(1-6), 2010: 33(1-6), 2011: 34(1-6), 2012: 35(1-6), 2013: 36(1-6), 2014: 37(1-6), 2015: 38(1-6), 2016: 39(1-6), 2017: 40(1-6), 2018: 41(1-6), 2019: 42(1-7), 2020: 43(1-7), 1921/2020/2021: 44(1-7), 2022: 45(1-7), 2022/2023: 46(1-7), 2024: 47(1-7), 2025: 48(1-7), 2026: 49(1-3)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 2 (1 to 4); 3 (1 to 5); 4 (1 to 6); 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 5); 28 (1 to 5); 29 (1 to 5); 31 (1-2, 3 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 7); 43 (1 to 7); 44 (1 to 4, 5-6, 7); 45 (1 to 7); 46 (1 to 7); 47 (1 to 7); 48 (1 to 5)
Library of Congress
2010-2025
Preserved
2025-04-07
33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 4, 6, 7); 43 (1 to 7); 44 (1 to 3, 5-6, 7); 45 (1 to 7); 46 (1 to 7); 47 (1 to 7); 48 (1, 2)