|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1981: 1(4)
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1986: 7(3)
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1992: 13(3)
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-02-09
|
|
|
17, 40 to 45
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 2016: 36(4)
|
|
|
LOCKSS Archive
|
|
Preserved
|
2026-02-09
|
|
|
39
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 2021: 41(1), 2022: 42(1-6), 2023: 43(1-6), 2024: 44(1-6), 2025: 45(1-6)
|
|
|
Scholars Portal
|
|
Preserved
|
2025-09-02
|
|
|
Preserved : 26 (4); 27 (, 1, 2, 3-4); 28 (, 2 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1-2, 3, 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); 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018
|
|
|
Internet Archive
|
|
Preserved
|
2025-08-08
|
|
|
1 to 24
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1980/1981: 1(1-4), 1981: 2(1-4), 1982: 3(1-4), 1983: 4(1-4), 1984: 5(1-6), 1985: 6(1-6), 1986: 7(1-6), 1987: 8(1-6), 1988: 9(1-6), 1989: 10(1-6), 1990: 11(1-6), 1991: 12(1-6), 1992: 13(1-6), 1993: 14(1-6), 1994: 15(1-6), 1995: 16(1-4), 1997: 17(1-4), 1998: 18(1-4), 1999: 19(1-4), 2000: 20(1-4), 2001: 21(1-4), 2002: 22(1-4), 2003: 23(1-4)
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-02-09
|
|
|
1 to 38
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 2008: 28(1-4), 2009: 29(1-4), 2010: 30(1-4), 2011/2012: 31(1-4), 2012: 32(1-4), 2013: 33(1-4), 2014: 34(1, S 1, 2-4), 2015: 35(1-4), 2016: 36(1-4), 2016/2017: 37(1-4), 2017/2018: 38(1-4)
|
|
|
Scholars Portal
|
|
Preserved
|
2025-09-02
|
|
|
Preserved : 18 (1); 22 (, 4); 23 (, 3); 25 (, 3); 36 (, 4); 37 (, 3); 39 (, 3, 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 3); 1998; 2002; 2003; 2005; 2016; 2017; 2019; 2020; 2021; 2022; 2023; 2024; 2025
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 4 (1 to 4); 39 (1 to 4); 44 (1 to 6)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 4 (1 to 4); 39 (1 to 4); 44 (1 to 6)
|
|
|
Library of Congress
|
|
Preserved
|
2025-04-07
|
|
|
30 (1 to 4); 31 (1-2, 3, 4); 32 (1 to 4); 33 (1 to 4); 34 (S1, 1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 3)
|
|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 17 (1, 2, 3-4); 18 (1-4); 19 (1, 2-3, 4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (2-4); 26 (1-4); 27 (1, 2, 3-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-2, 3, 4); 32 (1-4); 33 (1-4); 34 (supplement-1, 1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-3); 1154 (C)
|