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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1-4); 2; 3 (2 to 4); 4 (1-4); 5 (2 to 4); 6 (1-4); 7; 8; 9; 10 (2 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1, 2, 4 to 6); 17 (1 to 4, 5-6); 18 (1); 19 (2 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1, 2, 3-4, 5, 6); 24 (1 to 3, 4-5, 6); 25 (1 to 4, 5-6); 26 (1-2, 3, 4, 5-6); 27 (1‐2, 3‐4); 28 (1‐2, 3‐4); 29 (1 to 4); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (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.17:1-4,5-6;vol.18:1-4,5-6;vol.19:1-6;vol.20:1-6;vol.21:1-6;vol.22:1-6;vol.23:1-2,5-6,3-4;vol.24:1-3,6,4-5;vol.25:1-4,5-6;vol.26:3-4,1-2,5-6;vol.27:1-2,3-4,5-6;vol.28:1-2,3-4;vol.29:1-4;vol.30:1-12;vol.31:1-12;vol.32:1-12;vol.33:1-12;vol.34:1-12;vol.35:1-12;vol.36:1-12;vol.37:1-12
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CLOCKSS Archive
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Preserved
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2026-05-04
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8 to 20, 22 to 43
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Portico
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Preserved
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2026-04-30
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Preserved : 1997: 14(1-6), 1998: 15(1-6), 1999: 16(1-6), 2000: 17(1-6), 2001: 18(1-6), 2002: 19(1-6), 2003: 20(1-6), 2004: 21(1-6), 2005: 22(1-6), 2006: 23(1-6), 2007: 24(1-6), 2008: 25(1-6), 2009: 26(1-6), 2010: 27(1-6), 2012: 28(1-4), 2012: 29(1-4), 2013: 30(1-12), 2014: 31(1-12), 2015: 32(1-12), 2016: 33(1-12), 2017: 34(1-12), 2018: 35(1-12), 2019: 36(1-12), 2020: 37(1-12), 2021: 38(1-12), 2022: 39(1-12), 2023: 40(1-12), 2024: 41(1-12), 2025: 42(1-12), 2026: 43(1-2)
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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 6); 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 14 (6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 4, 5?6); 18 (1 to 4, 5?6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1, 2, 3?4, 5, 6); 24 (1 to 3, 4?5, 6); 25 (1 to 4, 5?6); 26 (1?2, 3, 4, 5?6); 27 (1?2, 3?4, 5?6); 28 (1-2, 3-4); 29 (1 to 4); 31 (1 to 9, 11); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1, 2, 4 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 5, 7 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 : 2 (1 to 6); 3 (1 to 9, 11, 12); 4 (1 to 9, 11, 12); 14 (6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 4, 5?6); 18 (1 to 4, 5?6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1, 2, 3?4, 5, 6); 24 (1 to 3, 4?5, 6); 25 (1 to 4, 5?6); 26 (1?2, 3, 4, 5?6); 27 (1?2, 3?4, 5?6); 28 (1-2, 3-4); 29 (1 to 4); 31 (1 to 9, 11); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1, 2, 4 to 9, 11, 12); 37 (1 to 9, 11, 12); 38 (1 to 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 5, 7 to 9)
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Library of Congress
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Preserved
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2025-04-07
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14 (1 to 3, 5); 28 (1‐2, 3‐4); 29 (1 to 4); 30 (1 to 12); 31 (1 to 10, 12); 32 (1 to 12); 33 (1 to 9, 11, 12); 34 (1, 2, 4, 5, 8, 10, 12); 35 (1 to 6, 8, 10, 12); 36 (1, 3 to 11); 37 (4 to 6, 8 to 11); 38 (1, 3, 5 to 12); 39 (1 to 12); 40 (8 to 10); 41 (3, 4)
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