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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 42 (3 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 3, 5, 6); 48 (, 1 to 6); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 53 (, 1 to 12); 54 (, 1 to 12); 55 (, 1 to 5); 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 30
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.32:1-4;vol.33:1-4;vol.34:1-4;vol.35:1-4;vol.36:1-4;vol.37:1-4,sup.s1;vol.38:1-4,sup.s1;vol.39:1-6;vol.40:1-6;vol.41:1-6;vol.42:1-6;vol.43:1-6;vol.44:1-6;vol.45:1-6;vol.46:1-6;vol.47:1-6;vol.48:1-6;vol.49:1-12;vol.50:1-12
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CLOCKSS Archive
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Preserved
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2026-02-09
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32 to 56
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 42(1-6), 2013: 43(1-6), 2014: 44(1-6), 2015: 45(1-6), 2016: 46(1-6), 2017: 47(1-6), 2018: 48(1-6), 2019: 49(1-12), 2020: 50(1-12), 2021: 51(1-12), 2022: 52(1-12), 2023: 53(1-12), 2024: 54(1-12), 2025: 55(1-12), 2026: 56(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 : 4 (1 to 6); 5 (1 to 9, 11, 12); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 3, 5 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 5, 7 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 : 4 (1 to 6); 5 (1 to 9, 11, 12); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 3, 5 to 9, 11, 12); 53 (1 to 9, 11, 12); 54 (1 to 9, 11, 12); 55 (1 to 5, 7 to 9)
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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 : 36 (1-4); 37 (s1, 1-4)
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Library of Congress
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Preserved
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2025-04-07
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45 (1 to 4, 6); 46 (1 to 5); 47 (2, 3, 6); 48 (1 to 4); 49 (1, 2, 4 to 10); 50 (1 to 3, 5, 7, 10 to 12); 51 (1 to 12); 52 (1 to 12); 53 (8 to 10); 54 (3, 4)
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