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