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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, 2/3, 4); 2 (, 1, 2, 3/4); 3 (, 1, 2, 3/4); 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, 2/3, 4); 22 (, 1 to 4); 23 (, 1, 2, 3/4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1 to 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 5); 32 (, 1 to 5); 33 (, 1 to 5); 34 (, 1 to 5); 35 (, 1 to 5); 36 (, 1 to 5); 37 (, 1 to 3, 4-5); 38 (, 1 to 5); 39 (, 1); 40 (, 1); 41 (, 1); 1985; 1986; 1987; 1988; 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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Internet Archive
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Preserved
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2025-08-08
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6 to 8
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 42
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Portico
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Preserved
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2026-02-12
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Preserved : 1987: 2(3-4), 1987: 3(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 5(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 8(1, 4), 1993: 9(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 10(2-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 11(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1996: 12(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1999: 14(4), 1999: 15(2), 2000: 16(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 18(1), 2003: 19(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 20(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 21(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 23(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 24(1-4), 2009: 25(1-4), 2010: 26(1-4), 2011: 27(1-4), 2012: 28(2), 2013: 29(1-4), 2014: 30(1-4), 2015: 31(2-5), 2016: 32(1-5), 2017: 33(1-5), 2018: 34(1-5), 2019: 35(1-5), 2019/2020: 36(1-5), 2021: 37(1-5), 2022: 38(1-5), 2023: 39(1), 2024: 40(1), 2025: 41(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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28, 35
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LOCKSS Archive
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Preserved
|
2026-02-09
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29 to 34
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Library of Congress
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Preserved
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2025-04-07
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34 (2 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 4-5); 38 (1 to 5); 39 (1); 40 (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 : 39
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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 : 39
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 2 (1 to 4); 3 (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, 2, 4); 22 (1 to 4); 23 (1 to 3); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 3, 4-5); 38 (1 to 5)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 2 (1 to 4); 3 (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, 2, 4); 22 (1 to 4); 23 (1 to 3); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 3, 4-5); 38 (1 to 5)
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Scholars Portal
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Preserved
|
2025-09-02
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|
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Preserved : 23 (1); 2007
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 13 (1-4); 14 (1-4); 15 (1-4); 16 (2-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1, 2-3, 4); 22 (1-4); 23 (1, 2, 3-4); 24 (1-4); 25 (2, 4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1, 3, 4); 30 (1-4); 31 (1-5); 32 (1-5); 33 (1-5); 34 (1-5); 35 (1-4)
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