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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.27:1-1,4,2-3;vol.28:3-4,1-2;vol.29:3-4,1-2;vol.30:1-2,3-4;vol.31:1-4;vol.32:1-3;vol.33:1-3;vol.34:1-3;vol.35:1-3;vol.36:1-3;vol.37:1-3;vol.38:1-3;vol.39:1-3;vol.40:1-3;vol.41:1-3;vol.42:1-3;vol.43:1-3;vol.44:1-3;vol.45:1-3;vol.46:1-3;vol.47:1-3;vol.48:1-3;vol.49:1-3;vol.50:1-3
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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 (6 to 10); 3 (1 to 3); 4 (1 to 4); 5 (1 to 4); 6 (1 to 5); 7 (1 to 3); 8 (1, 2); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (S1, 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 (1‐2, 3, 4); 26 (1, 2, 3‐4); 27 (2‐3); 31 (1); 32 (2, 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (S1, 1 to 3); 55 (1 to 3)
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Portico
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Preserved
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2026-04-23
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Preserved : 1971: 1(1-4), 1972/1973: 2(6-10), 1973: 3(1-3), 1974: 4(1-4), 1975: 5(1-4), 1976: 6(1-5), 1977: 7(1-3), 1978: 8(1-2), 1979: 9(1-4), 1980: 10(1-4), 1981: 11(1-4), 1982: 12(1-4), 1983: 13(1-4), 1984: 14(1, S1, 2-4), 1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1988: 18(1-4), 1989: 19(1-4), 1990: 20(1-4), 1991: 21(1-4), 1992: 22(1-4), 1993: 23(1-4), 1994: 24(1-4), 1995: 25(1-4), 1996: 26(1-4), 1997: 27(1, 4), 1998: 28(3), 1999: 29(3), 2000: 30(1-2), 2001: 31(1-3), 2002: 32(1-3), 2003: 33(1-3), 2004: 34(1-3), 2005: 35(1-3), 2006: 36(1-3), 2007: 37(1-3), 2008: 38(1-3), 2009: 39(1-3), 2010: 40(1-3), 2011: 41(1-3), 2012: 42(1-3), 2013: 43(1-3), 2014: 44(1-3), 2015: 45(1-3), 2016: 46(1-3), 2017: 47(1-3), 2018: 48(1-3), 2019: 49(1-3), 2020: 50(1-3), 2021: 51(1-3), 2022: 52(1-3), 2023: 53(1-3), 2024: 54(1, S1, 2-3), 2025: 55(1-3)
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CLOCKSS Archive
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Preserved
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2026-04-27
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20 to 56
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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 : 36 (1, 3); 37 (1-3)
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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 : 3 (1, 2, 3?4); 4 (1 to 3); 5 (1 to 3); 27 (1, 2?3, 4); 28 (1?2, 3, 4); 29 (1?2, 3, 4); 31 (1 to 4); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (S1, 1 to 3); 55 (1, 2)
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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 : 3 (1, 2, 3?4); 4 (1 to 3); 5 (1 to 3); 27 (1, 2?3, 4); 28 (1?2, 3, 4); 29 (1?2, 3, 4); 31 (1 to 4); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (S1, 1 to 3); 55 (1, 2)
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 33 (2)
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