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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 14 (2 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, 4-5, 6); 21 (1 to 5); 23 (6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (2 to 4, 6); 28 (2 to 4); 29 (S1, 1 to 8); 30 (1 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 14
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CLOCKSS Archive
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Preserved
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2026-04-13
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14 to 41
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Portico
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Preserved
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2026-04-16
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Preserved : 1999: 14(1-6), 2000: 15(1-6), 2001: 16(1-6), 2002: 17(1-6), 2003: 18(1-6), 2004: 19(1-6), 2005: 20(1-6), 2006: 21(1-6), 2007: 22(1-6), 2008: 23(1-6), 2009: 24(1-6), 2010: 25(1-6), 2011: 26(1-6), 2012: 27(1-6), 2013: 28(1-6), 2014: 29(1, S 1, 2-8), 2015: 30(1-8), 2016: 31(1-8), 2017: 32(1-8), 2018: 33(1-8), 2019: 34(1-8), 2020: 35(1-8), 2021: 36(1-8), 2022: 37(1-12), 2023: 38(1-12), 2024: 39(1-12), 2025: 40(1-12), 2026: 41(1-2)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.14:1-6;vol.15:1-6;vol.16:1-6;vol.17:1-6;vol.18:1-6;vol.19:1-6;vol.20:1-3,6,4-5;vol.21:1-6;vol.22:1-6;vol.23:1-6;vol.24:1-6;vol.25:1-6;vol.26:1-6;vol.27:1-6;vol.28:1-6;vol.29:1-8,S1;vol.30:1-8;vol.31:1-8;vol.32:1-8;vol.33:1-8;vol.34:1-8;vol.35:1-8
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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 3, 4?5, 6); 3 (1 to 8); 4 (1 to 9); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (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 6); 29 (S1, 1 to 7); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 9, 11); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12)
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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 3, 4?5, 6); 3 (1 to 8); 4 (1 to 9); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (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 6); 29 (S1, 1 to 7); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 8); 37 (1 to 9, 11); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12)
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Library of Congress
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Preserved
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2025-04-07
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1 (1, 3, 4); 2 (2 to 4); 3 (2); 28 (2); 29 (7); 30 (1 to 8); 31 (1 to 7); 32 (1 to 4, 7, 8); 33 (1, 2, 4, 7); 34 (2 to 6, 8); 35 (1, 3, 4, 8); 36 (2 to 5, 7, 8); 37 (2 to 12); 38 (8 to 11); 39 (3, 4)
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