|
|
Scholars Portal
|
|
Preserved
|
2026-03-19
|
|
|
Preserved : 1 (2 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (s1, 1 to 4); 6 (1 to 4); 7 (s1, 1 to 4); 8 (1 to 7); 9 (1 to 8); 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, 2, 3‐4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 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 (s1, 1 to 4); 38 (s1, 1 to 4); 39 (s1, 1 to 4); 40 (s1, 1 to 4); 41 (S1, 1 to 4); 42 (S1, 1 to 4); 43 (S1, 1 to 4); 44 (S1, 1 to 4); 45 (S1, 1 to 4); 46 (, 1 to 4); 47 (S1, 1 to 4); 48 (S1, 1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4)
|
|
|
Internet Archive
|
|
Preserved
|
2025-08-08
|
|
|
1 to 39
|
|
|
Technische Informationsbibliothek
|
|
Preserved
|
2026-01-13
|
|
|
vol.25:1-4;vol.26:1-4;vol.27:1-4;vol.28:1-4;vol.29:1-4;vol.30:1-4;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,sup.s1;vol.38:1-4,sup.s1;vol.39:1-4,sup.s1;vol.40:1-4,sup.s1;vol.41:1-4,sup.S1;vol.42:1-4,sup.S1;vol.43:1-4,S1;vol.44:1-4,S1;vol.45:1-4,S1;vol.46:1-4,sup.S1;vol.47:1-4,sup.S1;vol.48:1-4,sup.S1
|
|
|
Portico
|
|
Preserved
|
2026-05-07
|
|
|
Preserved : 1972/1973: 1(1-4), 1973/1974: 2(1-4), 1974/1975: 3(1-4), 1975/1976: 4(1-4), 1976/1977: 5(1-4), 1977/1978: 6(1-4), 1978/1979: 7(1-4), 1979/1980: 8(1-7), 1980/1981: 9(1-8), 1981/1982: 10(1-4), 1982/1983: 11(1-4), 1983/1984: 12(1-4), 1984/1985: 13(1-4), 1985/1986: 14(1-4), 1986/1987: 15(1-4), 1987/1988: 16(1-4), 1988/1989: 17(1-4), 1989/1990: 18(1-4), 1990/1991: 19(1-4), 1992: 20(1-4), 1993: 21(1-4), 1994: 22(1-4), 1995: 23(1-4), 1996: 24(1-4), 1997: 25(1-4), 1998: 26(1-4), 1999: 27(1-4), 2000: 28(1-4), 2001: 29(1-4), 2002: 30(1-4), 2003: 31(1-4), 2004: 32(1-4), 2005: 33(1-4), 2006: 34(1-4), 2007: 35(1-4), 2008: 36(1-4), 2009: 37(1-4), 2010: 38(1-4), 2011: 39(1-4), 2012: 40(1-4), 2013: 41(1, S1, 2-4), 2014: 42(1, S1, 2-4), 2015: 43(1, S 1, 2-4), 2016: 44(1, S 1, 2-4), 2017: 45(1, S 1, 2-4), 2018: 46(1, S1, 2-4), 2019: 47(1, S1, 2-4), 2020: 48(1, S1, 2-4), 2021: 49(1-4), 2022: 50(1-4), 2023: 51(1-4), 2024: 52(1-4), 2025: 53(1-4), 2026: 54(1)
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-05-04
|
|
|
19 to 54
|
|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 34 (1-4); 35 (1-4)
|
|
|
Library of Congress
|
|
Preserved
|
2025-04-07
|
|
|
19 (3‐4); 33 (1); 40 (1 to 4, s1); 41 (1 to 4, S1); 42 (1 to 4, S1); 43 (1 to 4, S1); 44 (1 to 4, S1); 45 (1); 46 (1 to 4, S1); 47 (1 to 4, S1); 48 (1 to 4, S1); 49 (2 to 4); 50 (1 to 4); 51 (3)
|
