|
|
Scholars Portal
|
|
Preserved
|
2025-09-02
|
|
|
Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 6, 8 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 5); 1981; 1982; 1983; 1984; 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
|
|
Preserved
|
2025-08-08
|
|
|
9 to 25
|
|
|
Technische Informationsbibliothek
|
|
Preserved
|
2026-01-13
|
|
|
vol.17:1-6;vol.18:1-6;vol.19:1-6;vol.20:1-6;vol.21:1-6;vol.22:1-6;vol.23:1-6;vol.24:1-6;vol.25:1-6;vol.26:1-6;vol.27:1-6;vol.28:1-6;vol.29:1-12;vol.30:1-12;vol.31:1-12;vol.32:1-12,sup.s1;vol.33:1-12;vol.34:1-12;vol.35:1-12;vol.36:1-12;vol.37:1-12;vol.38:1-12;vol.39:1-12;vol.40:1-12,S1
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1981: 1(1-4), 1982: 2(1-4), 1983: 3(1-4), 1984: 4(1-4), 1985: 5(1-4), 1986: 6(1-4), 1987: 7(1-4), 1988: 8(1-4), 1989: 9(1-4), 1990: 10(1-4), 1991: 11(1-4), 1992: 12(1-4), 1993: 13(1-6), 1994: 14(1-6), 1995: 15(1-6), 1996: 16(1-6), 1997: 17(1-6), 1998: 18(1-6), 1999: 19(1-6), 2000: 20(1-6), 2001: 21(1-6), 2002: 22(1-6), 2003: 23(1-6), 2004: 24(1-6), 2005: 25(1-6), 2006: 26(1-6), 2007: 27(1-6), 2008: 28(1-6), 2009: 29(1-12), 2010: 30(1-12), 2011: 31(1-12), 2012: 32(1-12), 2013: 33(1-12), 2014: 34(1-12), 2015: 35(1-12), 2016: 36(1-12), 2017: 37(1-12), 2018: 38(1-12), 2019: 39(1-12), 2020: 40(1, S 1, 2-12), 2021: 41(1-12), 2022: 42(1-12), 2023: 43(1-12), 2024: 44(1-12), 2025: 45(1-12), 2026: 46(1-2)
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-02-09
|
|
|
7, 11 to 46
|
|
|
LOCKSS Archive
|
|
In Progress
|
2026-02-09
|
|
|
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1999: 19(2, 5)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-10-23
|
|
|
Preserved : 2 (1 to 6); 3 (1 to 9, 11, 12); 4 (S1, 1 to 9, 11, 12); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (, 1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 3, 6 to 9, 11, 12); 45 (1 to 9)
|
|
|
National Digital Preservation Program, China
|
|
Preserved
|
2025-12-04
|
|
|
Preserved : 2 (1 to 6); 3 (1 to 9, 11, 12); 4 (S1, 1 to 9, 11, 12); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (, 1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 3, 6 to 9, 11, 12); 45 (1 to 9)
|
|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 18 (5, 6); 19 (1-6); 26 (1-6); 27 (1-6)
|
