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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); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1, 2); 17 (, 1, 2); 18 (, 1, 2); 19 (, 1, 2); 20 (, 1, 2); 21 (, 1 to 3); 22 (, 1 to 3); 23 (, 1, 2-3); 24 (, 1 to 3); 25 (, 1 to 3); 26 (, 1 to 3); 27 (, 1 to 3); 28 (, 1 to 3); 29 (, 1 to 3); 30 (, 1 to 3); 31 (, 1 to 3); 32 (, 1 to 3); 33 (, 1 to 3); 34 (, 1 to 3); 35 (, 1 to 3); 36 (, 1 to 3); 37 (, 1, 2); 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; 2021; 2022; 2023; 2024; 2025
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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, 2); 2 (1, 2); 8; 9 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1 to 3); 22 (1)
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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, 2); 2 (1, 2); 8; 9 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1 to 3); 22 (1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 37
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Portico
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Preserved
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2026-02-12
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Preserved : 1989/1990: 1(1-2), 1990/1991: 2(1-2), 1991/1992: 3(1-2), 1992/1993: 4(1-2), 1993/1994: 5(1-2), 1994/1995: 6(1-2), 1995/1996: 7(1-2), 1996/1997: 8(1-2), 1997/1998: 9(1-2), 1998/1999: 10(1-2), 1999/2000: 11(1-2), 2000/2001: 12(1-2), 2001/2002: 13(1-2), 2002/2003: 14(1-2), 2003/2004: 15(1-2), 2004/2005: 16(1-2), 2005/2006: 17(1-2), 2006/2007: 18(1-2), 2007/2008: 19(1-2), 2008: 20(1-2), 2009: 21(1-3), 2010: 22(1-3), 2011: 23(1-3), 2012: 24(1-3), 2013: 25(1-3), 2014: 26(1-3), 2015: 27(1-3), 2016: 28(1-3), 2017: 29(1-3), 2018: 30(1-3), 2019: 31(1-3), 2019: 32(1-3), 2021: 33(1-3), 2022: 34(1-3), 2023: 35(1-3), 2024: 36(1-3), 2025: 37(1-4)
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LOCKSS Archive
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In Progress
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2026-02-09
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24, 31
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LOCKSS Archive
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Preserved
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2026-02-09
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25 to 30
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Library of Congress
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Preserved
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2025-04-07
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29 (3); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3)
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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 3); 22 (1 to 3); 23 (1, 2); 24 (1 to 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (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 : 3 (1 to 3); 22 (1 to 3); 23 (1, 2); 24 (1 to 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3)
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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 (1, 2); 19; 20 (1, 2); 21 (1, 2); 22 (1-3); 23 (1, 2-3); 24 (1-3); 25 (1-3); 26 (1-3); 27 (1-3); 28 (1-3); 29 (1-3); 30 (1-3); 31 (1-3)
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