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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 6); 66 (, 1 to 6); 67 (, 1 to 6); 68 (, 1 to 3); 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 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 18
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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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.49:1-6;vol.50:1-6;vol.51:1-6;vol.52:1-6;vol.53:1-6;vol.54:1-6;vol.55:1-6;vol.56:1-6;vol.57:1-6;vol.58:1-6;vol.59:1-6;vol.60:1-6;vol.61:1-6;vol.62:1-6;vol.63:1-6
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CLOCKSS Archive
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Preserved
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2026-02-09
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42 to 68
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 55(1-6), 2013: 56(1-6), 2014: 57(1-6), 2015: 58(1-6), 2016: 59(1-6), 2017: 60(1-6), 2018: 61(1-6), 2019: 62(1-6), 2020: 63(1-6), 2021: 64(1-6), 2022: 65(1-6), 2023: 66(1-6), 2024: 67(1-6), 2025: 68(1-2, 4-6), 2026: 69(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 : 5 (1 to 6); 6 (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 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (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 : 5 (1 to 6); 6 (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 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1 to 6); 68 (1 to 5)
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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 : 49 (1-6); 50 (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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57 (6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1, 3, 4, 6); 62 (1, 2, 4 to 6); 63 (1 to 3, 5, 6); 64 (1, 3 to 6); 65 (1 to 6); 66 (4 to 6); 67 (2)
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