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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.19:1-8;vol.20:1-8;vol.21:1-8;vol.22:1-8;vol.23:1-12;vol.24:1-12;vol.25:1-12;vol.26:1-12;vol.27:1-12;vol.28:1-12;vol.29:1-12;vol.30:1-12;vol.31:1-12;vol.32:1-12;vol.33:1-12,S1;vol.34:1-12;vol.35:1-12;vol.36:1-12;vol.37:1-12,sup.S1;vol.38:1-12,S1;vol.39:1-12,sup.S1;vol.40:1-12;vol.41:1-12,sup.S1;vol.42:1-12;vol.43:1-2
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 6); 2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (S1, 1 to 3, 6); 11 (1 to 6); 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 8); 20 (1 to 8); 21 (1 to 8); 22 (1 to 8); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (S1, 1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (S1, 1 to 12); 38 (S1, 1 to 12); 39 (S1, 1 to 12); 40 (1 to 12); 41 (S1, 1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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1 to 36
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Portico
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Preserved
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2026-04-23
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Preserved : 1989: 11(1-6), 1990: 12(1-6), 1991: 13(1-6), 1992: 14(1-6), 1993: 15(1-6), 1994: 16(1-6), 1995: 17(1-6), 1996: 18(1-6), 1997: 19(1-8), 1998: 20(1-8), 1999: 21(1-8), 2000: 22(1-8), 2001: 23(1-12), 2002: 24(1-12), 2003: 25(1-12), 2004: 26(1-12), 2005: 27(1-12), 2006: 28(1-12), 2007: 29(1-12), 2008: 30(1-12), 2009: 31(1-12), 2010: 32(1-12), 2011: 33(1-12), 2012: 34(1-12), 2013: 35(1-12), 2014: 36(1-12), 2015: 37(1, S1, 2-12), 2016: 38(1, S 1, 2-12), 2017: 39(1, S1, 2-12), 2018: 40(1-12), 2019: 41(1, S1, 2-12), 2020: 42(1-12), 2021: 43(1-12), 2022: 44(1-12), 2023: 45(1-12), 2024: 46(1-12), 2025: 47(1-12), 2026: 48(1-3)
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CLOCKSS Archive
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Preserved
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2026-04-27
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12 to 48
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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 9, 11, 12); 4 (1 to 9, 11, 12); 18 (1 to 6); 19 (1 to 8); 21 (1 to 8); 22 (1 to 8); 23 (1 to 9, 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, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (S1, 1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (, 1 to 9, 11, 12); 38 (S1, 1 to 9, 11, 12); 39 (, 1 to 9, 11, 12); 41 (S1, 1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 7, 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 3, 5 to 9, 11, 12); 47 (1 to 9)
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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 9, 11, 12); 4 (1 to 9, 11, 12); 18 (1 to 6); 19 (1 to 8); 21 (1 to 8); 22 (1 to 8); 23 (1 to 9, 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, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (S1, 1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12); 37 (, 1 to 9, 11, 12); 38 (S1, 1 to 9, 11, 12); 39 (, 1 to 9, 11, 12); 41 (S1, 1 to 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 7, 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 3, 5 to 9, 11, 12); 47 (1 to 9, 11)
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