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Internet Archive
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Preserved
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2025-08-08
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14
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1 to 4); 2 (1 to 4); 3 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 10 (1 to 8); 11 (1 to 8); 12 (1, 2-3, 4 to 8); 13 (1 to 8); 14 (1 to 8); 15 (1 to 8); 16 (1 to 8); 17 (1 to 8); 18 (1 to 8); 19 (1 to 8); 20 (1 to 8); 21 (1 to 8); 22 (1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 4)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.10:1-8;vol.11:1-8;vol.12:1-1,4-8,2-3;vol.13:1-8;vol.14:1-8;vol.15:1-8;vol.16:1-8;vol.17:1-8;vol.18:1-8;vol.19:1-8;vol.20:1-8;vol.21:1-8;vol.22:1-12;vol.23:1-12;vol.24:1-12;vol.25:1-12;vol.26:1-12;vol.27:1-12;vol.28:1-12;vol.29:1;vol.5:1-6;vol.6:1-6;vol.7:1-6;vol.8:1-6;vol.9:1-6
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CLOCKSS Archive
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Preserved
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2026-04-06
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1 to 34
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Portico
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Preserved
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2026-04-02
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Preserved : 1993: 1(1-4), 1994: 2(1-4), 1995: 3(1-6), 1996: 4(1-6), 1997: 5(1-6), 1998: 6(1-6), 1999: 7(1-6), 2000: 8(1-6), 2001: 9(1-6), 2002: 10(1-8), 2003: 11(1-8), 2004: 12(1-8), 2005: 13(1-8), 2006: 14(1-8), 2007: 15(1-8), 2008: 16(1-8), 2009: 17(1-8), 2010: 18(1-8), 2011: 19(1-8), 2012: 20(1-8), 2013: 21(1-8), 2014: 22(1-12), 2015: 23(1-12), 2016: 24(1-12), 2017: 25(1-12), 2018: 26(1-12), 2019: 27(1-12), 2020: 28(1-12), 2021: 29(1-12), 2022: 30(1-12), 2023: 31(1-12), 2024: 32(1-12), 2025: 33(1-12), 2026: 34(1-3)
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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 8); 2 (1 to 8); 3 (1 to 9, 11, 12); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 8); 12 (1, 2?3, 4 to 8); 13 (1 to 8); 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 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1, 3 to 5, 7, 8, 11, 12); 33 (1 to 9)
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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 8); 2 (1 to 8); 3 (1 to 9, 11, 12); 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 7 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 8); 12 (1, 2?3, 4 to 8); 13 (1 to 8); 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 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1, 3 to 5, 7, 8, 11, 12); 33 (1 to 9, 11)
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