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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.40:1-4;vol.41:1-4;vol.42:1-4;vol.43:1-4;vol.44:1-4;vol.45:1-4
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1, 3, 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 6); 9 (1 to 6); 10 (1 to 6); 11 (1 to 6); 12 (1, 2, 4 to 6); 13 (1 to 6); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1, 2, 4); 29 (1 to 4); 30 (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 (1, 3, 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); 67 (5); 68 (S1, 5, 6); 69 (1 to 7); 70 (1 to 7); 71 (1 to 7); 72 (1 to 3)
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Portico
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Preserved
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2026-05-28
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Preserved : 1975: 1(1-4), 1976: 2(1-4), 1977: 3(1-4), 1978: 4(1-4), 1979: 5(1-4), 1980: 6(1-4), 1981: 7(1-4), 1982: 8(1-6), 1983: 9(1-6), 1984: 10(1-6), 1985: 11(1-6), 1986: 12(1-2, 4-6), 1987: 13(1-6), 1988: 14(1-4), 1988: 15(1-4), 1989: 16(1-4), 1989: 17(1-4), 1989: 18(1-4), 1990: 19(1-4), 1990: 20(1-4), 1990: 21(1-4), 1991: 22(1-4), 1991: 23(1-4), 1991: 24(1-4), 1992: 25(1-4), 1992: 26(1-4), 1992: 27(1-4), 1993: 28(1-4), 1993: 29(1-4), 1993: 30(1-4), 1994: 31(1-4), 1994: 32(1-4), 1994: 33(1-4), 1995: 34(1-4), 1995: 35(1-4), 1995: 36(1-4), 1996: 37(1-4), 1996: 38(1-4), 1996: 39(1-4), 1997: 40(1-4), 1997: 41(1-4), 1997: 42(1-4), 1998: 43(1-4), 1998: 44(1-4), 1998: 45(1-4)
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CLOCKSS Archive
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Preserved
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2026-05-25
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4, 12, 22 to 45
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.46:1-4;vol.47:1-4;vol.48:1-4;vol.49:1-4;vol.50:1-4;vol.51:1-4;vol.52:1-4;vol.53:1-4;vol.54:1-4;vol.55:1-4;vol.56:1-4;vol.57:1-4;vol.58:1-4;vol.59:1-4;vol.60:1-4;vol.61:1-4;vol.62:1-4;vol.63:1-4;vol.64:1-4;vol.65:1-4;vol.66:1-4;vol.67:1-6;vol.68:1-6,S1;vol.69:1-7;vol.70:1-7;vol.71:1-7;vol.72:1-7;vol.73:1-7,S1;vol.74:1-7,S1;vol.75:1-7,S1,S2;vol.76:1-7;vol.77:1-7,S1;vol.78:1-7;vol.79:1-7,S1;vol.80:1-7;vol.81:1-7,sup.S1;vol.82:1-7;vol.83:1-7,sup.S1;vol.84:1-7;vol.85:1-7,S1,sup.S2;vol.86:1-7,sup.S1;vol.87:1-7,S1,sup.S2;vol.88:1-7,S1;vol.89:1-7,S1,sup.S2;vol.90:1-7;vol.91:1-7,S1,S2;vol.92:1-7;vol.93:1-7,S1,S2;vol.94:1-7;vol.95:1-7,sup.S1,sup.S2;vol.96:1-7
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 4 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 4 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4)
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