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Internet Archive
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Preserved
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2025-08-08
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1 to 4
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 6 (2); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1, 2); 17 (, 1, 2); 18 (, 1‐2); 19 (, 1‐2); 20 (, 1, 2); 21 (, 1‐2); 22 (, 1, 2); 23 (, 1, 2); 24 (, 1, 2); 25 (, 1, 2); 26 (, 1, 2); 27 (, 1, 2); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 1, 2); 32 (, 1, 2); 33 (, 1, 2); 34 (, 1, 2); 35 (, 1, 2); 36 (, 1, 2); 37 (, 1, 2); 38 (, 1, 2); 39 (, 1, 2); 40 (, 1, 2); 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
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 23
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Portico
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Preserved
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2026-02-12
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Preserved : 1985/1986: 1(1-2, 4), 1971/1975/1987: 2(1-4, 3-4), 1972/1976/1987: 3(1-5), 1973/1977: 4(1-3), 1974/1978/1979: 5(1-3), 1990: 6(1-2), 1991: 7(1-2), 1992: 8(1-2), 1993: 9(1-2), 1994: 10(1-2), 1995: 11(1-2), 1996: 12(1-2), 1997: 13(1-2), 1998: 14(1-2), 1999/2000: 15(1-2), 2000: 16(1-2), 2001: 17(1-2), 2002: 18(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2003: 19(1-2), 2004: 20(1-2), 2005: 21(1-2), 2006: 22(1-2), 2007: 23(1-2)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.13:1-2;vol.14:1-2;vol.15:1-2;vol.16:1-2;vol.17:1-2;vol.18:1-2;vol.19:1-2;vol.20:1-2;vol.21:1-2;vol.22:1-2;vol.23:1-2;vol.24:1-2;vol.25:1-2;vol.26:1-2;vol.27:1-2;vol.28:1-2;vol.29:1-2;vol.30:1-2;vol.31:1-2;vol.32:1-2;vol.33:1-2;vol.34:1-2;vol.35:1-2;vol.36:1-2
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Portico
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Preserved
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2026-02-12
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Preserved : 1990: 6(2), 1991: 7(1-2), 1992: 8(1-2), 1993: 9(1-2), 1994: 10(1-2), 1995: 11(1-2), 1996: 12(1-2), 1997: 13(1-2), 1998: 14(1-2), 1999: 15(1-2), 2000: 16(1-2), 2001: 17(1-2), 2002: 18(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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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 20(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 22(1-2), 2007: 23(1-2), 2008: 24(1-2), 2009: 25(1-2), 2010: 26(1-2), 2011: 27(1-2), 2012: 28(1-2), 2013: 29(1-2), 2014: 30(1-2), 2015: 31(1-2), 2016: 32(1-2), 2017: 33(1-2), 2018: 34(1-2), 2019: 35(1-2), 2020: 36(1-2), 2021: 37(1-2), 2022: 38(1-2), 2023: 39(1-2), 2024: 40(1-2), 2025: 41(1-2)
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