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Internet Archive
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Preserved
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2025-08-08
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1 to 87
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 81 (1); 85 (2 to 4); 86 (1 to 4); 87 (1 to 4); 88 (1 to 4); 89 (1 to 4); 90 (1 to 4); 91 (1 to 4); 92 (1 to 4); 93 (1 to 4); 94 (1 to 4); 95 (1 to 4); 96 (1 to 4); 97 (1 to 4); 98 (1 to 4)
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HathiTrust
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Preserved
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2025-11-01
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v.1-2 1928-1929; v.1 (1928); v.2 (1929)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.78:1-4;vol.79:1-4;vol.80:1-4;vol.81:1-4;vol.82:1-4;vol.83:1-4;vol.84:1-4;vol.85:1-4;vol.86:1-4;vol.87:1-4;vol.88:1-4;vol.89:1-4;vol.90:1-4;vol.91:1-4;vol.92:1-4;vol.93:1-4
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CLOCKSS Archive
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Preserved
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2026-04-13
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78 to 98
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Portico
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Preserved
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2026-04-16
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Preserved : 2008: 81(1-4), 2009: 82(1-4), 2010: 83(1-4), 2011: 84(1-4), 2012: 85(1-4), 2013: 86(1-4), 2014: 87(1-4), 2015: 88(1-4), 2016: 89(1-4), 2017: 90(1-4), 2018: 91(1-4), 2019: 92(1-4), 2020: 93(1-4), 2021: 94(1-4), 2022: 95(1-4), 2023: 96(1-4), 2024: 97(1-4), 2025: 98(1-4)
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