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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.14:1-6;vol.15:1-6;vol.16:1-6;vol.18:1-2,5-6,3-4;vol.19:1-6;vol.20:1-6,sup.s1;vol.21:1-6,sup.s2;vol.22:1-6;vol.23:1-6,sup.s1;vol.24:1-6,sup.s1
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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 (, 1 to 3, 4I); 3 (, 1 to 3, 4I); 4 (, 1 to 3, 4I); 5 (, 1 to 3, 4I); 6 (, 1 to 3, 4I); 7 (, 1 to 3, 4I); 8 (, 1 to 3, 4I); 9 (, 2, 3, 4I); 10 (, 1 to 3, 4I); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 3); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 18 (, 1, 2, 3-4, 5, 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 35 (, 5); 36 (, 4 to 6); 37; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 1(1), 1990: 2(1-4), 1991: 3(1-4), 1992: 4(1-4), 1993: 5(1-4), 1994: 6(1-4), 1995: 7(1-4), 1996: 8(1-4), 1997: 9(2-4), 1998: 10(1-4), 1999: 11(1-4), 2000: 12(1-4), 2001: 13(1-3), 2002: 14(1-6), 2003: 15(1-6), 2004: 16(1-6)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 16, 18 to 32, 35 to 38
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 18(1-6), 2007: 19(1-6), 2008: 20(1, S 1, yes, 2-6), 2009: 21(1-2, S 2, yes, 3-6), 2010: 22(1-6), 2011: 23(1, S 1, yes, 2-6), 2012: 24(1-6), 2013: 25(1-6), 2013/2014: 26(1-6), 2014/2015: 27(1-6), 2015/2016: 28(1-2, S 2, 3, S 3, 4-6), 2016/2017: 29(1, S 1, 2-6), 2017/2018: 30(1, S 1, 2-6), 2018/2019: 31(1, S 1, 2, S 2, 3-6), 2019/2020: 32(1-6), 2021: 33(1-6), 2022: 34(1-6), 2023: 35(1-6), 2024: 36(1-6), 2025: 37, 2026: 38
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 14(1-6), 2003: 15(1-6), 2004: 16(1-6)
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CLOCKSS Archive
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Preserved
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2026-02-09
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14 to 16, 18 to 24
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 18(1-2, 5-6), 2007: 19(1-6), 2008: 20(1-6), 2009: 21(1-6), 2010: 22(1-6), 2011: 23(1-6), 2012: 24(1-6)
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Library of Congress
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Preserved
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2025-04-07
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22 (1 to 6); 23 (1 to 6, s1); 24 (1 to 6, s1); 25 (s1, 1 to 6); 26 (s1, 1 to 6); 27 (s1, 1 to 6); 28 (s2, s3, s1, 1 to 6); 29 (s1, 1 to 6); 30 (s1, 1 to 5); 31 (s2, s1, 1, 2, 5); 32 (2, 5); 35 (5); 36 (2, 4, 5)
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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 : 18 (1, 2, 3-4, 5, 6); 19 (1-6)
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