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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 (, 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 to 4); 20 (, 1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 7); 28 (, 1 to 7); 29 (, 1 to 7); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1 to 7); 33 (, 1 to 7); 34 (, 1 to 7); 35 (, 1 to 7); 36 (, 1 to 12); 37 (, 1 to 7); 1989; 1990; 1991; 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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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 38
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 1(1), 1990: 2(1-4), 1991: 3(1-4), 1992: 4(1-4), 1993: 5(1-4), 1994: 6(1-4), 1995: 7(1-4), 1996: 8(1-4), 1997: 9(1-4), 1998: 10(1-4), 1999: 11(1-4), 2000: 12(1-4), 2001: 13(1-4), 2002: 14(1-4), 2003: 15(1-4), 2004: 16(1-4), 2005: 17(1-4), 2006: 18(1-4), 2007: 19(1-4), 2008: 20(1-4), 2009: 21(1-4), 2010: 22(1-4), 2011: 23(1-4), 2012: 24(1-6), 2013: 25(1, S1, 2, S2, 3-6), 2014: 26(1, S1, 2, S2, 3-6), 2015: 27(1, S1, 2-7), 2016: 28(1, S1, 2-7), 2017: 29(1, S1, 2, S2, 3-7), 2018: 30(1, S1, 2-6), 2019: 31(1, S1, 2-6), 2020: 32(1, S1, 2-7), 2021: 33(1-7), 2022: 34(1, S1, 2, S2, 3-7), 2023: 35(1-7), 2024: 36(1, S1, 2-12), 2025: 37(1-12), 2026: 38(1-2)
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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 (2, 3); 2 (1 to 4); 3 (, 1 to 6); 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 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 7); 28 (, 1 to 7); 29 (, 1 to 7); 31 (S1, 1 to 6); 32 (S1, 1 to 7); 33 (1 to 7); 34 (S1, 1 to 7); 35 (1 to 7); 36 (S1, 1 to 7, 9, 11, 12); 37 (1 to 9)
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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 (2, 3); 2 (1 to 4); 3 (, 1 to 6); 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 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 6); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 7); 28 (, 1 to 7); 29 (, 1 to 7); 31 (S1, 1 to 6); 32 (S1, 1 to 7); 33 (1 to 7); 34 (S2, 1 to 7); 35 (1 to 7); 36 (S1, 1 to 7, 9, 11, 12); 37 (1 to 9)
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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 : 18 (s1, 1-4); 19 (s1, 1-4)
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