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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1-Part-I, 2 to 4); 20 (, 1‐Part‐I, 2 to 4); 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 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 4); 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 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.10:1-4;vol.11:1-4,sup.s1;vol.12:1-4;vol.13:1-4,sup.s1;vol.14:1-4;vol.15:1-4,sup.s1;vol.16:1-4;vol.17:1-4,sup.s1;vol.18:1-4;vol.19:2-4,1p2,1-Part-I,sup.s2;vol.20:2-4,1pt1,1pt2,sup.s1;vol.21:1-6,sup.s1;vol.22:1-6;vol.23:1-6,sup.s1;vol.24:1-6;vol.25:1-6,sup.S1,sup.S2;vol.26:1-6,sup.S1;vol.27:1-6,sup.S1,sup.S2;vol.28:1-6,sup.S1;vol.29:1-6,sup.S1;vol.6:1-4;vol.7:1-4,S1,S2;vol.8:1-4,S1;vol.9:1-4,sup.S1
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 35
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 1(1-4), 1993: 2(1-4), 1994: 3(1-4), 1995: 4(1-4), 1996: 5(1-4), 1997: 6(1-4), 1998: 7(1-2, S 2), 1999: 8(1-2), 2000: 9(1, S1, 2), 2001: 10(1-4), 2002: 11(1-4), 2003: 12(1-4), 2004: 13(1-4), 2005: 14(1-4), 2006: 15(1-4), 2007: 16(1-4), 2008: 17(1-4), 2009: 18(1-4), 2010: 19(1, Part 2, 1‐p‐I-4), 2011: 20(1pt1, 1pt2, 2-4), 2012: 21(1-6), 2013: 22(1-6), 2014: 23(1-6), 2015: 24(1-6), 2016: 25(1, S1, 2, S2, 3-6), 2017: 26(1, S1, 2-6), 2018: 27(1, S1, 2, S2, 3-6), 2019: 28(1, S1, 2-6), 2020: 29(1, S1, 2-6), 2021: 30(1-6), 2022: 31(1, S1, 2-6), 2023: 32(1-6), 2024: 33(1, S1, 2-6), 2025: 34(1-6), 2026: 35(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 : 1 (1 to 4); 2 (, 1pt1, 2 to 4); 3 (1 to 6); 6 (1 to 4); 7 (S1, 1 to 4); 8 (S1, 1 to 4); 9 (1 to 4); 11 (, 1 to 4); 12 (1 to 4); 13 (, 1 to 4); 14 (1 to 4); 15 (, 1 to 4); 16 (1 to 4); 17 (, 1 to 4); 18 (1 to 4); 19 (, 1?Part?I, 2 to 4); 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 (S1, 1 to 6); 28 (S1, 1 to 6); 29 (S1, 1 to 6); 31 (S1, 1 to 6); 32 (1 to 6); 33 (S1, 1, 2, 4 to 6); 34 (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 : 1 (1 to 4); 2 (, 1pt1, 2 to 4); 3 (1 to 6); 6 (1 to 4); 7 (S1, 1 to 4); 8 (S1, 1 to 4); 9 (1 to 4); 11 (, 1 to 4); 12 (1 to 4); 13 (, 1 to 4); 14 (1 to 4); 15 (, 1 to 4); 16 (1 to 4); 17 (, 1 to 4); 18 (1 to 4); 19 (, 1?Part?I, 2 to 4); 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 (S1, 1 to 6); 28 (S1, 1 to 6); 29 (S1, 1 to 6); 31 (S1, 1 to 6); 32 (1 to 6); 33 (S1, 1, 2, 4 to 6); 34 (1 to 5)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 15 (s1, 1-4); 16 (1-4)
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Library of Congress
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Preserved
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2025-04-07
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21 (1 to 6, s1); 22 (1 to 6); 23 (1 to 6, s1); 24 (1 to 6); 25 (1 to 4, 6, S1); 26 (1 to 3, 5, 6, S1); 27 (1 to 3, 5, 6, S2); 28 (1, 2, 4, 5, S1); 29 (1 to 3, 5, 6); 30 (1 to 6); 31 (1 to 6, S1); 32 (5); 33 (2)
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