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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 55 (1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 4); 65 (, 1 to 4); 66 (, 1 to 4); 67 (, 1 to 4); 68 (, 1 to 4); 69 (, 1 to 4); 70 (, 1 to 4); 71 (, 1 to 4); 72 (, 1 to 4); 73 (, 1 to 4); 74 (, 1 to 4); 75 (, 1 to 4); 76 (, 1 to 4); 77 (, 1 to 4); 78 (, 1 to 4); 79 (, 1 to 4); 80 (, 1 to 4); 81 (, 1 to 4); 82 (, 1 to 4); 83 (, 1 to 4); 84 (, 1 to 4); 85 (, 1 to 4); 86 (, 1 to 4); 87 (, 1 to 4); 88 (, 1 to 4); 89 (, 1 to 4); 90 (, 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; 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 77
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.62:1-4;vol.63:1-4;vol.64:1-4;vol.65:1-4;vol.66:1-4;vol.67:1-4;vol.68:1-4;vol.69:1-4;vol.70:1-4;vol.71:1-4;vol.72:1-4;vol.73:1-4;vol.74:1-4;vol.75:1-4;vol.76:1-4;vol.77:1-4;vol.78:1-4;vol.79:1-4;vol.80:1-4;vol.81:1-4;vol.82:1-4;vol.83:1-4;vol.84:1-4;vol.85:1-4
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CLOCKSS Archive
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Preserved
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2026-02-09
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56 to 90
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Portico
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Preserved
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2026-02-12
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Preserved : 1990: 55(1-4), 1991: 56(1-4), 1992: 57(1-4), 1993: 58(1-4), 1994: 59(1-4), 1995: 60(1-4), 1996: 61(1-4), 1997: 62(1-4), 1998: 63(1-4), 1999: 64(1-4), 2000: 65(1-4), 2001: 66(1-4), 2002: 67(1-4), 2003: 68(1-4), 2004: 69(1-4), 2005: 70(1-4), 2006: 71(1-4), 2007: 72(1-4), 2008: 73(1-4), 2009: 74(1-4), 2010: 75(1-4), 2011: 76(1-4), 2012: 77(1-4), 2013: 78(1-4), 2014: 79(1-4), 2015: 80(1-4), 2016: 81(1-4), 2017: 82(1-4), 2018: 83(1-4), 2019: 84(1-4), 2020: 85(1-4), 2021: 86(1-4), 2022: 87(1, S1, 2-4), 2023: 88(1-4), 2024: 89(1, S1, 2-4), 2025: 90(1-4), 2026: 91(1)
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