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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 01 (01, 2 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 3, 5, 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 3); 1998; 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 2
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.10:1-4;vol.11:1-6;vol.12:1-6;vol.13:1-6,sup.s1;vol.14:1-6;vol.15:1-6;vol.16:1-6;vol.17:1-6,sup.S1;vol.18:1-6;vol.19:1-6;vol.1:1-4;vol.20:1-6;vol.21:1-6;vol.22:1-6;vol.23:1-6;vol.2:1-4;vol.3:1-4;vol.4:1-4;vol.5:1-4;vol.6:1-4;vol.7:1-4;vol.8:1-4;vol.9:1-4
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 28
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Portico
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Preserved
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2026-02-12
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Preserved : 2009: 12(1-6), 2010: 13(1-6), 2011: 14(1-6), 2012: 15(1-6), 2013: 16(1-6), 2014: 17(1, S1, 2-6), 2015: 18(1-6), 2016: 19(1-6), 2017: 20(1-6), 2018: 21(1-6), 2019: 22(1-6), 2020: 23(1-6), 2021: 24(1-6), 2022: 25(1-6), 2023: 26(1-6), 2024: 27(1-6), 2025: 28(1-6)
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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 : 1 (1 to 4); 2 (1 to 6); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 6); 12 (1 to 6); 13 (, 1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (S1, 1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (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 : 1 (1 to 4); 2 (1 to 6); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 11 (1 to 6); 12 (1 to 6); 13 (, 1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (S1, 1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (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 : 9 (1, 3, 4); 10 (1, 3, 4)
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