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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 12); 7 (, 1 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 12); 11 (, 1 to 12); 12 (, 1 to 12); 13 (, 1 to 12); 14 (, 1 to 12); 15 (, 1 to 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 5, 7 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1, 2, 7 to 10, 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 7, 9 to 12); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 6); 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 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
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Internet Archive
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Preserved
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2025-08-08
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1 to 25
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.12:1-12;vol.13:1-12;vol.14:1-12;vol.15:1-12,S1;vol.16:1-12,S1;vol.17:1-12;vol.18:1-12,S1;vol.19:1-12;vol.20:1-12;vol.21:1-12;vol.22:1-12;vol.23:1-12;vol.24:1-12;vol.25:1-12;vol.26:1-12;vol.27:1-12;vol.28:1-12;vol.29:1-12;vol.30:1-12;vol.31:1-12;vol.32:1-12;vol.33:1-12;vol.34:1-12;vol.35:1-12;vol.36:1
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 1(1-2), 1987: 2(1-4), 1988: 3(1-4), 1989: 4(1-6), 1990: 5(1-6), 1991: 6(1-12), 1992: 7(1-12), 1993: 8(1-12), 1994: 9(1-12), 1995: 10(1-12), 1996: 11(1-12), 1997: 12(1-12), 1998: 13(1-12), 1999: 14(1-12), 2000: 15(1, S 1, 2-12), 2001: 16(1, S 1, 2-12), 2002: 17(1-12), 2003: 18(1, S 1, 2-12), 2004: 19(1-12), 2005: 20(1-12), 2006: 21(1-12), 2007: 22(1-12), 2008: 23(1-12), 2009: 24(1-12), 2010: 25(1-12), 2011: 26(1-12), 2012: 27(1-12), 2013: 28(1-12), 2014: 29(1-12), 2015: 30(1-12), 2016: 31(1-12), 2017: 32(1-12), 2018: 33(1-12), 2019: 34(1-12), 2020: 35(1-12), 2021: 36(1-12), 2022: 37(1-12), 2023: 38(1-12), 2024: 39(1-12), 2025: 40(1-12), 2026: 41(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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6 to 41
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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 : 2 (1 to 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 9); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (S1, 1 to 9, 11, 12); 16 (S1, 1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (S1, 1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12)
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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 : 2 (1 to 9, 11, 12); 3 (1 to 9, 11, 12); 4 (1 to 9); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (S1, 1 to 9, 11, 12); 16 (S1, 1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (S1, 1 to 9, 11, 12); 19 (1 to 9, 11, 12); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12)
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