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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.10:1-6;vol.11:1-6;vol.12:1-4,5-6;vol.13:1-6,7-8;vol.14:1-10;vol.15:1-1,4-10,2-3;vol.16:1-10;vol.17:1-10;vol.18:1-10;vol.19:1-10;vol.20:1-12;vol.21:1-12;vol.22:1-12;vol.23:1-5,8-8,11-12,6-7,9-10;vol.24:1-12;vol.25:1-12;vol.26:1-12;vol.27:1-12;vol.28:1-18;vol.29:1-18;vol.30:1-18;vol.31:1-18;vol.32:1-18;vol.33:1-18;vol.34:1-3
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Internet Archive
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Preserved
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2025-08-08
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1 to 7
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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, 2, 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 4, 5-6); 13 (, 1 to 6, 7-8); 14 (, 1 to 10); 15 (, 1, 2-3, 4 to 6, 8 to 10); 16 (, 1 to 10); 17 (, 1, 2, 4 to 10); 18 (, 1 to 10); 19 (, 1 to 10); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 5, 7 to 12); 23 (, 1 to 5, 6-7, 8, 9-10, 11, 12); 24 (, 1 to 12); 25 (, 1, 6 to 9, 11, 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 18); 29 (, 1 to 18); 30 (, 1 to 18); 31 (, 1 to 18); 32 (, 1 to 18); 33 (, 1 to 18); 34 (, 1 to 18); 35 (, 1 to 18); 36 (, 1 to 18); 37 (, 1 to 18); 38 (, 1 to 11); 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 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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CLOCKSS Archive
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Preserved
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2026-02-09
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4 to 39
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 7(1-4), 1995: 8(1-6), 1996: 9(1-6), 1997: 10(1-6), 1998: 11(1-6), 1999: 12(1-6), 2000: 13(1-8), 2001: 14(1-10), 2002: 15(1-10), 2003: 16(1-10), 2004: 17(1-10), 2005: 18(1-10), 2006: 19(1-10), 2007: 20(1-12), 2008: 21(1-12), 2009: 22(1-12), 2010: 23(1-12), 2011: 24(1-12), 2012: 25(1-12), 2013: 26(1-12), 2014: 27(1-12), 2015: 28(1-18), 2016: 29(1-18), 2017: 30(1-18), 2018: 31(1-18), 2019: 32(1-18), 2020: 33(1-18), 2021: 34(1-18), 2022: 35(1-18), 2023: 36(1-18), 2024: 37(1-18), 2025: 38(1-18), 2026: 39(1-4)
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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 : 1 (1 to 6); 2 (1 to 9, 11, 12); 3 (1 to 9, 11 to 18); 9 (1 to 6); 11 (1 to 6); 12 (1 to 4, 5?6); 13 (1 to 6, 7?8); 14 (1 to 9); 15 (1, 2?3, 4 to 9); 16 (1 to 9); 17 (1 to 9); 18 (1 to 9); 19 (1 to 9); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 5, 6?7, 8, 9?1, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 5, 8, 9, 11 to 18); 38 (1 to 9, 11 to 15)
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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 : 1 (1 to 6); 2 (1 to 9, 11, 12); 3 (1 to 9, 11 to 18); 9 (1 to 6); 11 (1 to 6); 12 (1 to 4, 5?6); 13 (1 to 6, 7?8); 14 (1 to 9); 15 (1, 2?3, 4 to 9); 16 (1 to 9); 17 (1 to 9); 18 (1 to 9); 19 (1 to 9); 21 (1 to 9, 11, 12); 22 (1 to 9, 11, 12); 23 (1 to 5, 6?7, 8, 9?1, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 18); 32 (1 to 9, 11 to 18); 33 (1 to 9, 11 to 18); 34 (1 to 9, 11 to 18); 35 (1 to 9, 11 to 18); 36 (1 to 9, 11 to 18); 37 (1 to 5, 8, 9, 11 to 18); 38 (1 to 9, 11 to 17)
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Library of Congress
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Preserved
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2025-04-07
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27 (1 to 12); 28 (1 to 18); 29 (1 to 12, 14 to 16, 18); 30 (1, 4, 5, 8, 10, 11, 14 to 17); 31 (2, 3, 5 to 10, 12 to 18); 32 (2, 3, 7, 8, 10 to 16); 33 (1, 2, 4, 5, 8 to 12, 15, 16, 18); 34 (4 to 18); 35 (1, 3 to 18); 36 (1 to 3, 13 to 18); 37 (7 to 9)
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