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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.39:1-4;vol.40:1-4;vol.41:1-4;vol.42:1-4;vol.43:1-4;vol.44:1-4;vol.45:1-4;vol.46:1-4;vol.47:1-4;vol.48:1-4;vol.49:1-4;vol.50:1-4;vol.51:1-4;vol.52:1-4;vol.53:1-4;vol.54:1-4;vol.55:1-4;vol.56:1-4;vol.57:1-4;vol.58:1-4;vol.59:1-4
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 39 (2 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (2 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1, 2, 3-4); 62 (S1, 1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (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 54
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CLOCKSS Archive
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Preserved
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2026-05-25
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39 to 65
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Portico
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Preserved
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2026-05-28
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Preserved : 2011: 50(1-4), 2012: 51(1-4), 2013: 52(1-4), 2014: 53(1-4), 2015: 54(1-4), 2016: 55(1-4), 2017: 56(1-4), 2018: 57(1-4), 2019: 58(1-4), 2020: 59(1-4), 2021: 60(1-4), 2022: 61(1-4), 2023: 62(1, S 1, 2-4), 2024: 63(1-4), 2025: 64(1-4), 2026: 65(1)
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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 : 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1, 2, 3-4); 62 (S1, 1 to 4); 63 (1 to 4); 64 (1 to 3)
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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 : 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1, 2, 3-4); 62 (S1, 1 to 4); 63 (1 to 4); 64 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 45 (1-4); 46 (1-4)
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