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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 31 (1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 5); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 12); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 12); 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022 (1 to 10, 11-12); 2023 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 2024 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 2025 (, 1 to 3)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.31:1-4;vol.32:1-4;vol.33:1-4;vol.34:1-4;vol.35:1-6;vol.36:1-6;vol.37:1-6;vol.38:1-6;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.48:1-12;vol.49:1-12;vol.50:1-12;vol.51:1-12
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CLOCKSS Archive
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Preserved
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2026-02-09
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31 to 52, 2022 to 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 43(1-6), 2013: 44(1-6), 2014: 45(1-6), 2015: 46(1-6), 2016: 47(1-6), 2017: 48(1-12), 2018: 49(1-12), 2019: 50(1-12), 2020: 51(1-12), 2021: 52(1-12), 2022: 2022(1-12), 2023: 2023(1-12), 2024: 2024(1-12), 2025: 2025(1-6), 2026: 2026(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 6); 5 (1 to 9, 11, 12); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 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 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 222 (1 to 9, 11-12); 223 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 224 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 225 (1 to 4)
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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); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 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 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 222 (1 to 9, 11-12); 223 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 224 (1-2, 3-4, 5-6, 7-8, 9-1, 11-12); 225 (1 to 4)
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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 : 37 (1-6); 38 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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46 (1 to 6); 47 (1 to 6); 48 (1 to 5, 7, 8, 11); 49 (1 to 3, 5 to 12); 50 (3 to 9); 51 (2 to 12); 52 (1 to 12); 2022; 2023; 2024
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