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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.49:1-4;vol.50:1-4;vol.51:1-4;vol.52:1-4;vol.53:1-5;vol.54:1-5;vol.55:1-5;vol.56:1-5;vol.57:1-5;vol.58:1-5;vol.59:1-5;vol.60:1-5;vol.61:1-5;vol.62:1-5;vol.63:1-5;vol.64:1-5;vol.65:1-5;vol.66:1-5;vol.67:1-5;vol.68:1-5;vol.69:1-5;vol.70:1
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 53 (2 to 5); 54 (1 to 5); 55 (1 to 5); 56 (1 to 5); 57 (1 to 5); 58 (1 to 5); 59 (1 to 5); 60 (1 to 5); 61 (1 to 5); 62 (1 to 5); 63 (1 to 5); 64 (1 to 5); 65 (1 to 5); 66 (1 to 5); 67 (1 to 5); 68 (2 to 5); 69 (1 to 5); 70 (1 to 5); 71 (1 to 5); 72 (1 to 5); 73 (1 to 5); 74 (1 to 5); 75 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 63
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CLOCKSS Archive
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Preserved
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2026-04-13
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49 to 75
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Portico
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Preserved
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2026-04-16
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Preserved : 2006: 55(4)
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Portico
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Preserved
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2026-04-16
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Preserved : 2012: 61(1-5), 2013: 62(1-5), 2014: 63(1-5), 2015: 64(1-5), 2016: 65(1-5), 2017: 66(1-5), 2018: 67(1-5), 2019: 68(1-5), 2020: 69(1-5), 2021: 70(1-5), 2022: 71(1-5), 2023: 72(1-5), 2024: 73(1-5), 2025: 74(1-5), 2026: 75(1)
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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 : 55 (1-5); 56 (1-5)
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