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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 21 (1 to 3, 4-5, 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 3, 4-5, 6); 28 (1, 2, 3-4, 5-6); 29 (1 to 6); 30 (1, 4 to 6); 31 (1 to 4); 32 (2 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (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 22
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.21:1-3,6,4-5;vol.22:1-6;vol.23:1-6;vol.24:1-6;vol.25:1-6;vol.26:1-6;vol.27:1-3,6,4-5;vol.28:1-2,3-4,5-6;vol.29:1-6;vol.30:1-6;vol.31:1-6;vol.32:1-6;vol.33:1-6;vol.34:1-6;vol.35:1-6;vol.36:1-6;vol.37:1-6;vol.38:1-6;vol.39:1
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CLOCKSS Archive
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Preserved
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2026-04-06
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21 to 44
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Portico
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Preserved
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2026-04-09
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Preserved : 2003: 21(1-6), 2004: 22(1-6), 2005: 23(1-6), 2006: 24(1-6), 2007: 25(1-6), 2008: 26(1-6), 2009: 27(1-6), 2010: 28(1-6), 2011: 29(1-6), 2012: 30(1-6), 2013: 31(1-6), 2014: 32(1-6), 2015: 33(1-6), 2016: 34(1-6), 2017: 35(1-6), 2018: 36(1-6), 2019: 37(1-6), 2020: 38(1-6), 2021: 39(1-6), 2022: 40(1-6), 2023: 41(1-6), 2024: 42(1-6), 2025: 43(1-6), 2026: 44(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 : 3 (1 to 6); 4 (1 to 6); 21 (1 to 3, 4?5, 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 3, 4?5, 6); 28 (1, 2, 3?4, 5?6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 4, 6); 42 (1 to 4, 6); 43 (1 to 5)
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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 : 3 (1 to 6); 4 (1 to 6); 21 (1 to 3, 4?5, 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 3, 4?5, 6); 28 (1, 2, 3?4, 5?6); 29 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 4, 6); 42 (1 to 4, 6); 43 (1 to 6)
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