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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 (, 1-2, 3-4); 24 (, 1-2, 3, 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1, 3, 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1, 2, 3-4); 34 (, 1, 2); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1, 3, 4); 42 (, 1 to 3); 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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23 to 24
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LOCKSS Archive
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Preserved
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2026-02-09
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4 to 41
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CLOCKSS Archive
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Preserved
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2026-02-09
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23 to 34
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LOCKSS Archive
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In Progress
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2026-02-09
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42
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Portico
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Preserved
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2026-02-12
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Preserved : 1991/1992/1993: 9(1-4), 1992: 10(1-2), 1993: 11(1-2), 1995: 12(1-4), 1995/1996: 13(1-4), 1996/1997: 14(1-4), 1997/1998: 15(1-4), 1998/1999: 16(1-4), 2000: 17(1-4), 2000/2001: 18(1-4), 2001/2002: 19(1-4), 2002/2003: 20(1-4), 2003/2004: 21(1-4), 2004/2005/2007: 22(1-4), 2008: 24(3-4), 2008: 25(1-4), 2009: 26(1-4), 2010: 27(1-4), 2011: 28(1-4), 2012: 29(1-4), 2013: 30(1-4), 2014: 31(1-4), 2015: 32(1-4), 2016: 33(1-4), 2017: 34(1-4), 2018: 35(1-4), 2019: 36(1-4), 2020: 37(1-4), 2021: 38(1-4), 2022: 39(1-4), 2023: 40(1-4), 2024: 41(1-4), 2025: 42(1-4), 2026: 43(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 22(4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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4 to 42
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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 : 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 14 (3, 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 (1-2, 3-4); 24 (1-2, 3, 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1, 2, 3-4); 34 (1, 2, 3-4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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31 (4); 34 (2, 3-4); 35 (1 to 4); 36 (1, 2, 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4)
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