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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37; 38 (1, 2); 39 (1 to 3); 40 (1 to 3); 41 (1-2, 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 4); 46 (1 to 5); 47 (1 to 4); 48 (1 to 5); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 3); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (S1, 1 to 5); 58 (S1, 1 to 5); 59 (S1, 1 to 5); 60 (S1, 1 to 5); 61 (S1, 1 to 5); 62 (S1, 1 to 5); 63 (S1, 1 to 5); 64 (S1, 1 to 5); 65 (1 to 5)
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Internet Archive
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Preserved
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2025-08-08
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26 to 54
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.37:1-2;vol.38:1-2;vol.39:1-3;vol.40:1-3;vol.41:3,1-2;vol.42:1-3;vol.43:1-3;vol.44:1-3;vol.45:1-4;vol.46:1-5;vol.47:1-4;vol.48:1-5;vol.49:1-4;vol.50:1-4;vol.51:1-4;vol.52:1-4,sup.s1;vol.53:1-4;vol.54:1-4;vol.55:1-4;vol.56:1-4;vol.57:1-5,sup.S1;vol.58:1-5,sup.S1;vol.59:1-5,sup.S1,sup.S2;vol.60:1-5,sup.S1
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Portico
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Preserved
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2026-04-16
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Preserved : 1979: 19(1-2), 1980: 20(1-2), 1981: 21(1-2), 1982: 22(1-2), 1983: 23(1-2), 1984: 24(1-2), 1985: 25(1-2), 1986: 26(1-2), 1987: 27(1-2), 1988: 28(1-2), 1989: 29(1-2), 1990: 30(1-2), 1991: 31(1-2), 1992: 32(1-2), 1993: 33(1-2), 1994: 34(1-2), 1995: 35(1-2), 1996: 36(1-2), 1997: 37(1-2), 1998: 38(1-2), 1999: 39(1-3), 2000: 40(1-3), 2001: 41(1-3), 2002: 42(1-3), 2003: 43(1-3), 2004: 44(1-3), 2005: 45(1-4), 2006: 46(1-4), 2007: 47(1-4), 2008: 48(1-4), 2009: 49(1-4), 2010: 50(1-4), 2011: 51(1-4), 2012: 52(1-4), 2013: 53(1-4), 2014: 54(1-4), 2015: 55(1-4), 2016: 56(1-4), 2017: 57(1, S1, 2-5), 2018/2019: 58(1, S1, 2-5), 2019: 59(1, S1, 2, S2, 3-5), 2020: 60(1, S1, 2-5), 2021: 61(1, S1, 2-5), 2022: 62(1, S1, 2-5), 2023: 63(1, S1, 2, S2, 3-5), 2024: 64(1, S1, 2-5), 2025: 65(1-5)
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CLOCKSS Archive
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Preserved
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2026-04-13
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31 to 66
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 46 (2-5); 47 (1-4)
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