|
|
Scholars Portal
|
|
Preserved
|
2025-09-02
|
|
|
Preserved : 25 (1); 30 (, 1 to 3); 31 (, 1 to 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); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1, 2); 1994; 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
|
|
|
1 to 44
|
|
|
Technische Informationsbibliothek
|
|
Preserved
|
2026-01-13
|
|
|
vol.28:1-3;vol.29:1-3;vol.30:1-3;vol.31:1-4;vol.32:1-4;vol.33:1-4;vol.34:1-4;vol.35:1-4;vol.36:1-4;vol.37:1-4;vol.38:1-4;vol.39:1-4;vol.40:1-4;vol.41:1-4;vol.42:1-4;vol.43:1-4;vol.44:1-4;vol.45:1-4;vol.46:1-4;vol.47:1-4;vol.48:1-4;vol.49:1-4;vol.50:1-4;vol.51:1-4
|
|
|
Portico
|
|
Preserved
|
2026-02-12
|
|
|
Preserved : 1970: 1(1), 1971: 2(1-2), 1972: 3(1-3), 1973: 4(1-3), 1974: 5(1-3), 1975: 6(1-3), 1976: 7(1-3), 1977: 8(1-3), 1978: 9(1-3), 1979: 10(1-3), 1980: 11(1-3), 1981: 12(1-3), 1982: 13(1-3), 1983: 14(1-3), 1984: 15(1-3), 1985: 16(1-3), 1986: 17(1-3), 1987: 18(1-3), 1988: 19(1-3), 1989: 20(1-3), 1990: 21(1-3), 1991: 22(1-3), 1992: 23(1-3), 1993: 24(1-3), 1994: 25(1-3), 1995: 26(1-3), 1996: 27(1-3), 1997: 28(1-3), 1998: 29(1-3), 1999: 30(1-3), 2000: 31(1-4), 2001: 32(1-4), 2002: 33(1-4), 2003: 34(1-4), 2004: 35(1-4), 2005: 36(1-4), 2006: 37(1-4), 2007: 38(1-4), 2008: 39(1-4), 2009: 40(1-4), 2010: 41(1-4), 2011: 42(1-4), 2012: 43(1-4), 2013: 44(1-4), 2014: 45(1-4), 2015: 46(1-4), 2016: 47(1-4), 2017: 48(1-4), 2018: 49(1-4), 2019: 50(1-4), 2020: 51(1-4), 2021: 52(1-4), 2022: 53(1-4), 2023: 54(1-4), 2024: 55(1-4), 2025: 56(1-3)
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-02-09
|
|
|
22 to 56
|
|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 37 (1-4); 38 (1-3)
|
