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