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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 (, 1 to 6); 3 (S1, 1 to 6); 7 (1, 2); 8 (1 to 3); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (S1, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (1 to 4); 18 (1 to 6); 19 (, 1 to 6); 21 (s1, 1 to 6); 22 (s1, 1 to 6); 23 (s1, 1 to 6); 24 (S1, 1 to 6); 25 (S1, 1 to 6); 26 (S1, 1 to 6); 27 (S1, 1 to 6); 28 (S1, 1 to 6); 29 (S1, 1 to 6); 31 (S1, 1 to 6); 32 (S1, 1 to 6); 33 (S1, 1 to 6); 34 (S1, 1 to 6); 35 (S1, 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 : 1 (1 to 4); 2 (, 1 to 6); 3 (S1, 1 to 6); 7 (1, 2); 8 (1 to 3); 9 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (S1, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (1 to 4); 18 (1 to 6); 19 (, 1 to 6); 21 (s1, 1 to 6); 22 (s1, 1 to 6); 23 (s1, 1 to 6); 24 (S1, 1 to 6); 25 (S1, 1 to 6); 26 (S1, 1 to 6); 27 (S1, 1 to 6); 28 (S1, 1 to 6); 29 (S1, 1 to 6); 31 (S1, 1 to 6); 32 (S1, 1 to 6); 33 (S1, 1 to 6); 34 (S1, 1 to 6); 35 (S1, 1 to 4)
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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 : 16 (s1, 1-4); 17 (1-4)
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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, 2); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 6 (, 1, 2); 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 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 4); 22 (, 3 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 3, 5, 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 6); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1, 2); 1991; 1992; 1993; 1994; 1995; 1996; 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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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 : 1991: 1(1-2), 1992: 2(1-2), 1993: 3(1-2), 1994: 4(1-2), 1995: 5(1-2), 1996: 6(1-2), 1997: 7(1-2), 1998: 8(1-3), 1999: 9(1-4), 2000: 10(1-4), 2001: 11(1-4), 2002: 12(1-4), 2003: 13(1-4), 2004: 14(1-4), 2005: 15(1-4), 2006: 16(1-4), 2007: 17(1-4), 2008: 18(1-6), 2009: 19(1-6), 2010: 20(1-6), 2011: 21(1-6), 2012: 22(1, S 1, 2, S 2, 3-6), 2013: 23(1, S 1, 2-6), 2014: 24(1, S 1, 2-6), 2015: 25(1, S 1, 2-6), 2016: 26(1, S 1, 2-6), 2017: 27(1, S 1, 2-6), 2018: 28(1, S 1, 2-6), 2019: 29(1, S 1, 2-6), 2020: 30(1, S 1, 2-6), 2021: 31(1, S 1, 2-6), 2022: 32(1, S 1, 2, S 2, 3-6), 2023: 33(1, S1, 2-6), 2024: 34(1, S1, 2, S2, 3-6), 2025: 35(1, S1, 2, S2, 3-6)
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