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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 51 (1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 5); 55 (, 1 to 5); 56 (, 1, 2-3, 4, 5); 57 (, 1 to 5); 58 (, 1 to 5); 59 (, 1 to 5); 60 (, 1 to 5); 61 (, 1, 3 to 5); 62 (, 1 to 5); 63 (, 1 to 5); 64 (, 1 to 5); 65 (, 1 to 5); 66 (, 1 to 5); 67 (, 1 to 5); 68 (, 1 to 5); 69 (, 1 to 5); 70 (, 1 to 5); 71 (, 1 to 5); 72 (, 1 to 5); 73 (, 1 to 5); 74 (, 1 to 3); 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.50:1-4;vol.51:1-4;vol.52:1-4;vol.53:1-4;vol.54:1-5,S1;vol.55:1-5,S1;vol.56:1-1,4-5,2-3,S1;vol.57:1-5;vol.58:1-5,S1,S2,S3;vol.59:1-5;vol.60:1-5,sup.S1;vol.61:1-5,sup.S1,sup.S2;vol.62:1-5,S2,sup.S1;vol.63:1-5;vol.64:1-5;vol.65:1-5,sup.S1,sup.S2;vol.66:1-5;vol.67:1-5,sup.S1,sup.S2;vol.68:1-5;vol.69:1-5,sup.S1,sup.S2
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CLOCKSS Archive
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Preserved
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2026-02-09
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50 to 74
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 50(1-4), 2002: 51(1-4), 2003: 52(1-4), 2004: 53(1-4), 2005: 54(1, S 1, 2-5), 2006: 55(1, S 1, 2-5), 2007: 56(1, S 1, 2-5), 2008: 57(1-5), 2009: 58(1, S 1, 2, S 2, 3, S 3, 4-5), 2010: 59(1-5), 2011: 60(1-5), 2012: 61(1, S1, 2, S2, 3-5), 2013: 62(1, S1, 2, S 2, 3-5), 2014: 63(1-5), 2015: 64(1-5), 2016: 65(1, S1, 2, S2, 3-5), 2017: 66(1-5), 2018: 67(1, S1, 2, S2, 3-5), 2019: 68(1-5), 2020: 69(1, S1, 2, S2, 3-5), 2021: 70(1-5), 2022: 71(1, S1, 2-5), 2023: 72(1-5), 2024: 73(1-5), 2025: 74(1-5), 2026: 75(1)
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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 : 5 (1 to 4); 6 (, 1 to 5); 7 (1 to 5); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (S1, 1 to 5); 55 (S1, 1 to 5); 56 (S1, 1, 2?3, 4, 5); 57 (1 to 5); 58 (S1, 1 to 5); 59 (1 to 5); 61 (, 1 to 5); 62 (, 1 to 5); 63 (1 to 5); 64 (1 to 5); 65 (, 1 to 5); 66 (1 to 5); 67 (, 1 to 5); 68 (1 to 5); 69 (S1, 1 to 5); 71 (S1, 1 to 5); 72 (1 to 5); 73 (2 to 5); 74 (1 to 3)
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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 : 5 (1 to 4); 6 (, 1 to 5); 7 (1 to 5); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (S1, 1 to 5); 55 (S1, 1 to 5); 56 (S1, 1, 2?3, 4, 5); 57 (1 to 5); 58 (S1, 1 to 5); 59 (1 to 5); 61 (, 1 to 5); 62 (, 1 to 5); 63 (1 to 5); 64 (1 to 5); 65 (, 1 to 5); 66 (1 to 5); 67 (, 1 to 5); 68 (1 to 5); 69 (S1, 1 to 5); 71 (S1, 1 to 5); 72 (1 to 5); 73 (2 to 5); 74 (1 to 3)
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