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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 to 4); 5 (, 1 to 4); 6 (, 1 to 5); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 4, 6); 13 (, 1 to 6); 14 (, 1 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 8); 21 (, 1 to 8); 22 (, 1 to 8); 23 (, 1 to 8); 24 (, 1 to 8); 25 (, 1 to 3, 5 to 8); 26 (, 1 to 8); 27 (, 1 to 8); 28 (, 1, 2, 4 to 8); 29 (, 1 to 8); 30 (, 1 to 8); 31 (, 1 to 8); 32 (, 1 to 8); 33 (, 1 to 8); 34 (, 1 to 8); 35 (, 1 to 8); 36 (, 1 to 8); 37 (, 1 to 8); 38 (, 1 to 8); 39 (, 1 to 8); 40 (, 1 to 8); 41 (, 1 to 5); 1985; 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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Internet Archive
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Preserved
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2025-08-08
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1 to 15
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.13:1-6;vol.14:1-6;vol.15:1-6;vol.16:1-6;vol.17:1-6;vol.18:1-6;vol.19:1-6;vol.20:1-8;vol.21:1-8;vol.22:1-8;vol.23:1-8;vol.24:1-8;vol.25:1-8;vol.26:1-8;vol.27:1-8;vol.28:1-8;vol.29:1-8;vol.30:1-8;vol.31:1-8;vol.32:1-8;vol.33:1-8;vol.34:1-8;vol.35:1-8;vol.36:1-8
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 1(1-4), 1986: 2(1-4), 1987: 3(1-4), 1988: 4(1-4), 1989: 5(1-4), 1990: 6(1-5), 1991: 7(1-6), 1992: 8(1-6), 1993: 9(1-6), 1994: 10(1-6), 1995: 11(1-6), 1996: 12(1-6), 1997: 13(1-6), 1998: 14(1-6), 1999: 15(1-6), 2000: 16(1-6), 2001: 17(1-6), 2002: 18(1-6), 2003: 19(1-6), 2004: 20(1-8), 2005: 21(1-8), 2006: 22(1-8), 2007: 23(1-8), 2008: 24(1-8), 2009: 25(1-8), 2010: 26(1-8), 2011: 27(1-8), 2012: 28(1-8), 2013: 29(1-8), 2014: 30(1-8), 2015: 31(1-8), 2016: 32(1-8), 2017: 33(1-8), 2018: 34(1-8), 2019: 35(1-8), 2020: 36(1-8), 2021: 37(1-8), 2022: 38(1-8), 2023: 39(1-8), 2024: 40(1-8), 2025: 41(1-8), 2026: 42(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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7 to 42
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1 to 8); 3 (1 to 8); 4 (1 to 8); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 41 (1 to 6)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2 (1 to 8); 3 (1 to 8); 4 (1 to 8); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 8); 28 (1 to 8); 29 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 41 (1 to 7)
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