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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.28:1-4;vol.29:1-4;vol.30:1-4;vol.31:1-4;vol.32:1-4;vol.33:1-4;vol.34:1-6;vol.35:1-6;vol.36:1-6;vol.37:1-6;vol.38:1-6,s1;vol.39:1-6;vol.40:1
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1, 3, 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (s1, 1 to 3, 5, 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 23
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CLOCKSS Archive
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Preserved
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2026-05-04
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28 to 45
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Portico
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Preserved
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2026-05-07
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Preserved : 2009: 28(1-4), 2010: 29(1-4), 2011: 30(1-4), 2012: 31(1-4), 2013: 32(1-4), 2014: 33(1-4), 2015: 34(1-6), 2016: 35(1-6), 2017: 36(1-6), 2018: 37(1-6), 2019: 38(1, S 1, 2-6), 2020: 39(1-6), 2021: 40(1-6), 2022: 41(1-6), 2023: 42(1-6), 2024: 43(1-6), 2025: 44(1-6), 2026: 45(1-2)
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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 : 3 (1 to 4); 4 (1 to 6); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1, 3 to 6); 44 (1 to 5)
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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 : 3 (1 to 4); 4 (1 to 6); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1, 3 to 6); 44 (1 to 5)
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