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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (2 to 6); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1, 2 to 4 to 6); 7 (, 1, 2 to 4 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 3 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1, 2 to 4 to 6); 14 (, 1 to 4 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 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); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1_suppl, 2 to 4, 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
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Internet Archive
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Preserved
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2025-08-08
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4 to 26
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 41
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 1(1-6), 1987: 2(1-6), 1988: 3(1-6), 1989: 4(1-6), 1990: 5(1-6), 1991: 6(1-6), 1992: 7(1-6), 1993: 8(1-6), 1994: 9(1-6), 1995: 10(1-6), 1996: 11(1-6), 1997: 12(1-6), 1998: 13(1-6), 1999: 14(1-6), 2000: 15(1-6), 2001: 16(1-6), 2002: 17(1-6), 2003: 18(1-6), 2004: 19(1-6), 2005: 20(1-6), 2006: 21(1-6), 2007: 22(1-6), 2008: 23(1-6), 2009: 24(1-6), 2010: 25(1-6), 2011: 26(1-6), 2012: 27(1-6), 2013: 28(1-6), 2014: 29(1-6), 2015: 30(1-6), 2016: 31(1-6), 2017: 32(1-6), 2018: 33(1-6), 2019: 34(1, S1, 2-6), 2020: 35(1-6), 2021: 36(1-6), 2022: 37(1-6), 2023: 38(1, S1, 2, S2, 3-6), 2024: 39(1, S1, 2-6), 2025: 40(1-6), 2026: 41(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 32
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 1(1-6), 1987: 2(1-6), 1988: 3(1-6), 1989: 4(1-6), 1990: 5(1-6), 1991: 6(1-3, 3, S, 4-6), 1992: 7(1-3, 3, S, 4-6), 1993: 8(1-6), 1994: 9(1-6), 1995: 10(1-2, 2, S, 3-6), 1996: 11(1-6), 1997: 12(1-6), 1998: 13(1-3, 3, S, 4-6), 1999: 14(1-5, 5, S, 6), 2000: 15(1-6), 2001: 16(1-6), 2002: 17(1-6), 2003: 18(1-6), 2004: 19(1-6), 2005: 20(1-6), 2006: 21(1-6), 2007: 22(1-6), 2008: 23(1-6), 2009: 24(1-6), 2010: 25(1-6), 2011: 26(1-6), 2012: 27(1-6), 2013: 28(1-6), 2014: 29(1-6), 2015: 30(1, 3-6), 2016: 31(1-6), 2017: 32(1, 1, S, 2-6)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.12:1-6;vol.13:1-6,sup.3S;vol.14:1-6,sup.5S;vol.15:1-6;vol.16:1-6;vol.17:1-6;vol.18:1-6;vol.19:1-6;vol.20:1-6;vol.21:1-6;vol.22:1-6;vol.23:1-6;vol.24:1-6;vol.25:1-6;vol.26:1-6;vol.27:1-6;vol.28:1-6;vol.29:1-6;vol.30:1-6;vol.31:1-6;vol.32:1-6,sup.1S;vol.33:1-6;vol.34:1-6,sup.S1;vol.35:1-6
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CLOCKSS Archive
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Preserved
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2026-02-09
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23 to 30
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CLOCKSS Archive
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In Progress
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2026-02-09
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31, 32
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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 : 1 (2-6); 2 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-6); 7 (1-6); 8 (1-6); 9 (1-6); 10 (1-6); 11 (1-3, 5, 6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-6); 16 (1-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-4, 6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6)
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