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Internet Archive
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Preserved
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2025-08-08
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1 to 25
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 13 (15); 14 (, 1 to 5, 6-7, 8-9, 11, 12, 13-15); 15 (, 1, 2, 3-5, 6, 7-8, 9, 10, 11-12, 13 to 15); 16 (, 1, 2-3, 4 to 15); 17 (, 1, 2-4, 5-6, 7-8, 9 to 15); 18 (, 1 to 15); 19 (, 1 to 18); 20 (, 1 to 18); 21 (, 1 to 8, 10 to 18); 22 (, 1 to 12, 14 to 18); 23 (, 1 to 18); 24 (, 1, 2, 8 to 15, 18); 25 (, 1 to 18); 26 (, 1 to 18); 27 (, 1 to 18); 28 (, 1 to 18); 29 (, 1 to 12, 14 to 24); 30 (, 1 to 24); 31 (, 1 to 14, 16 to 24); 32 (, 1 to 24); 33 (, 1 to 24); 34 (, 1 to 28); 35 (, 1 to 28); 36 (, 1 to 28); 37 (, 1, 2, 4-5, 6-8, 9-11, 12-14, 15-17); 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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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.13:1-7,10-15,8-9;vol.14:1-5,10-12,13-15,6-7,8-9;vol.15:1-2,6-6,9-10,13-15,11-12,3-5,7-8;vol.16:1-1,4-15,2-3,S1;vol.17:1-1,9-15,2-4,5-6,7-8;vol.18:1-15;vol.19:1-18;vol.20:1-18;vol.21:1-18;vol.22:1-18;vol.23:1-18;vol.24:1-18;vol.25:1-18;vol.26:1-18;vol.27:1-18;vol.28:1-18;vol.29:1-24;vol.30:1-24;vol.31:1-24;vol.32:1-24;vol.33:1-2
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CLOCKSS Archive
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Preserved
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2026-02-09
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13 to 38
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 13(1-15), 2002: 14(1-15), 2003: 15(1-15), 2004: 16(1, S 1, 2-15), 2005: 17(1-15), 2006: 18(1-15), 2007: 19(1-18), 2008: 20(1-18), 2009: 21(1-18), 2010: 22(1-18), 2011: 23(1-18), 2012: 24(1-18), 2013: 25(1-18), 2014: 26(1-18), 2015: 27(1-18), 2016: 28(1-18), 2017: 29(1-24), 2018: 30(1-24), 2019: 31(1-24), 2020: 32(1-24), 2021: 33(1-24), 2022: 34(1-28), 2023: 35(1-28), 2024: 36(1-28), 2025: 37(1-28), 2026: 38(1-4)
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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 : 2 (1 to 9, 11 to 18); 3 (1 to 9, 11 to 19, 21 to 24); 13 (1 to 7, 8?9, 11 to 15); 14 (1 to 5, 6?7, 8?9, 11, 12, 13?15); 15 (1, 2, 3?5, 6, 7?8, 9, 11?12, 13 to 15); 16 (S1, 1, 2?3, 4 to 9, 11 to 15); 17 (1, 2?4, 5?6, 7?8, 9, 11 to 15); 18 (1 to 9, 11 to 15); 19 (1 to 9, 11 to 18); 21 (1 to 9, 11 to 18); 22 (1 to 9, 11 to 18); 23 (1 to 9, 11 to 18); 24 (1 to 9, 11 to 18); 25 (1 to 9, 11 to 18); 26 (1 to 9, 11 to 18); 27 (1 to 9, 11 to 18); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 19, 21 to 24); 31 (1 to 9, 11 to 19, 21 to 24); 32 (1 to 9, 11 to 19, 21 to 24); 33 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 19, 21, 22, 24 to 28); 35 (1 to 9, 11 to 19, 21 to 28); 36 (1, 2, 4, 6 to 9, 11 to 19, 21 to 28); 37 (1 to 3, 4-5, 6-8, 9-11, 12-14, 15-17, 18-2, 21-22, 23-24)
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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 : 2 (1 to 9, 11 to 18); 3 (1 to 9, 11 to 19, 21 to 24); 13 (1 to 7, 8?9, 11 to 15); 14 (1 to 5, 6?7, 8?9, 11, 12, 13?15); 15 (1, 2, 3?5, 6, 7?8, 9, 11?12, 13 to 15); 16 (S1, 1, 2?3, 4 to 9, 11 to 15); 17 (1, 2?4, 5?6, 7?8, 9, 11 to 15); 18 (1 to 9, 11 to 15); 19 (1 to 9, 11 to 18); 21 (1 to 9, 11 to 18); 22 (1 to 9, 11 to 18); 23 (1 to 9, 11 to 18); 24 (1 to 9, 11 to 18); 25 (1 to 9, 11 to 18); 26 (1 to 9, 11 to 18); 27 (1 to 9, 11 to 18); 28 (1 to 9, 11 to 18); 29 (1 to 9, 11 to 19, 21 to 24); 31 (1 to 9, 11 to 19, 21 to 24); 32 (1 to 9, 11 to 19, 21 to 24); 33 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 19, 21, 22, 24 to 28); 35 (1 to 9, 11 to 19, 21 to 28); 36 (1, 2, 4, 6 to 9, 11 to 19, 21 to 28); 37 (1 to 3, 4-5, 6-8, 9-11, 12-14, 15-17, 18-2, 21-22, 23-24, 25-26)
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Library of Congress
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Preserved
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2025-04-07
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24 (11); 25 (2); 26 (1 to 18); 27 (1 to 18); 28 (1 to 15, 18); 29 (1 to 12, 17 to 21); 30 (1 to 4, 6 to 14, 16, 18 to 21, 23, 24); 31 (1, 4, 8 to 10, 12 to 16, 20, 22 to 24); 32 (1 to 6, 9, 10, 12 to 14, 16 to 18, 21, 23, 24); 33 (1 to 3, 5 to 24); 34 (1 to 28); 35 (1 to 3, 19 to 27); 36 (2, 9 to 12)
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