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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2 to 4); 2 (1 to 4); 3 (S1, 1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 6); 7 (1 to 6); 8 (s2, 1 to 6); 9 (s1, 1 to 6); 10 (1 to 6); 11 (s1, 1 to 6); 12 (s1, 1 to 6); 13 (1 to 6); 14 (1 to 8); 15 (1 to 8); 16 (1 to 8); 17 (s1, 1 to 8); 18 (s1, 1 to 8); 19 (1 to 8); 20 (s1, 1 to 8); 21 (1 to 8); 22 (S1, 1 to 8); 23 (1 to 8); 24 (1-2, 3 to 8); 25 (S1, 1 to 8); 26 (S1, 1 to 8); 27 (S3, 1 to 8); 28 (S1, 1 to 8); 29 (S1, 1 to 8); 30 (1 to 8); 31 (1 to 12)
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Portico
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Preserved
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2026-04-02
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Preserved : 1995: 1(1-4), 1996: 2(1-4), 1997: 3(1, S 1, 2-4), 1998: 4(1-4), 1999: 5(1-4), 2000: 6(1-6), 2001: 7(1-6), 2002: 8(1-6), 2003: 9(1-6), 2004: 10(1-6), 2005: 11(1-6), 2006: 12(1-6), 2007: 13(1-6), 2008: 14(1-8), 2009: 15(1-8), 2010: 16(1-8), 2011: 17(1-8), 2012: 18(1-8), 2013: 19(1-8), 2014: 20(1-8), 2015: 21(1-8), 2016: 22(1, S1, 2, S2, 3-8), 2017: 23(1-8), 2018: 24(1-8), 2019: 25(1, S1, 2-8), 2020: 26(1, S1, 2-8), 2021: 27(1-3, S3, 4-8), 2022: 28(1, S1, 2, S2, 3-8), 2023: 29(1, S1, 2-8), 2024: 30(1-8), 2025: 31(1-11)
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 32
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.10:1-6;vol.11:1-6,sup.s1;vol.12:1-6,sup.s1;vol.13:1-6;vol.14:1-8,sup.s1;vol.15:1-8;vol.16:1-8;vol.17:1-8,sup.s1;vol.18:1-8,sup.s1;vol.19:1-8;vol.20:1-8,sup.s1,sup.s2;vol.21:1-8;vol.22:1-8,sup.S1,sup.S2;vol.23:1-8;vol.24:3-8,1-2;vol.25:1-8,sup.S1;vol.26:1-8,sup.S1;vol.27:1;vol.3:1-4,S1;vol.4:1-4;vol.5:1-4;vol.6:1-6;vol.7:1-6;vol.8:1-6,sup.s2;vol.9:1-6,sup.s1
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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 6); 2 (, 1 to 8); 3 (S1, 1 to 8); 4 (1 to 4); 5 (1 to 4); 6 (1 to 6); 7 (1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (1 to 6); 14 (, 1 to 8); 15 (1 to 8); 16 (1 to 8); 17 (, 1 to 8); 18 (, 1 to 8); 19 (1 to 8); 21 (1 to 8); 22 (, 1 to 8); 23 (1 to 8); 24 (1-2, 3 to 8); 25 (S1, 1, 2, 4 to 8); 26 (S1, 1 to 8); 27 (S3, 1 to 8); 28 (S1, 1 to 8); 29 (S1, 1 to 8); 31 (1 to 8)
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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 6); 2 (, 1 to 8); 3 (S1, 1 to 8); 4 (1 to 4); 5 (1 to 4); 6 (1 to 6); 7 (1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (1 to 6); 14 (, 1 to 8); 15 (1 to 8); 16 (1 to 8); 17 (, 1 to 8); 18 (, 1 to 8); 19 (1 to 8); 21 (1 to 8); 22 (, 1 to 8); 23 (1 to 8); 24 (1-2, 3 to 8); 25 (S1, 1, 2, 4 to 8); 26 (S1, 1 to 8); 27 (S3, 1 to 8); 28 (S1, 1 to 8); 29 (S1, 1 to 8); 31 (1 to 8)
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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 : 12 (s1, 1-6); 13 (1-6)
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