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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 10 (1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 29 (, 1 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 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
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Internet Archive
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Preserved
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2025-08-08
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1 to 17
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 1(1-4), 1989: 2(1-6), 1990: 3(1-6), 1991: 4(1-4), 1992: 5(1-4), 1993: 6(1-5), 1994: 7(1-6), 1995: 8(1-6), 1996: 9(1-6), 1997: 10(1-5), 1998: 11(1-5), 1999: 12(1-5), 2000: 13(1-5), 2001: 14(1-5), 2002: 15(1-5), 2003: 16(1-5), 2004: 17(1-5), 2005: 18(1-5), 2006: 19(1-5), 2007: 20(1-5), 2008: 21(1-6), 2009: 22(1-12), 2010: 23(1-12), 2011: 24(1-12), 2012: 25(1-12), 2013: 26(1-12), 2014: 27(1-12), 2015: 28(1-12), 2016: 29(1-12), 2017: 30(1-12), 2018: 31(1-12), 2019: 32(1-12), 2020: 33(1-12), 2021: 34(1-12), 2022: 35(1-12), 2023: 36(1-12)
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CLOCKSS Archive
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Preserved
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2026-02-09
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4 to 36
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 1(1-4), 1989: 2(1-6), 1990: 3(3-6), 1991: 4(1-4), 1992: 5(1-4), 1993: 6(1-5), 1994: 7(1-6), 1995: 8(1-6), 1996: 9(1-6), 1997: 10(1-6), 1998: 11(1-6), 1999: 12(1-6), 1999/2000: 13(1-6), 2001: 14(1-6), 2002: 15(1-6), 2003: 16(1-6), 2004: 17(1-6), 2005: 18(1-6), 2006: 19(1-6), 2007: 20(1-6), 2008: 21(1-6), 2009: 22(1-12), 2010: 23(1-12), 2011: 24(1-12), 2012: 25(1-12), 2013: 26(1-12), 2014: 27(1-12), 2015: 28(1-12), 2016: 29(1, 3-12), 2017: 30(1-12), 2018: 31(1-12), 2019/2020: 32(1-10, 12), 2020: 33(1-12)
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LOCKSS Archive
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Preserved
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2026-02-09
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21 to 37
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CLOCKSS Archive
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In Progress
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2026-02-09
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21 to 38
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Portico
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Preserved
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2026-02-12
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Preserved : 2020/2022: 35(1-12), 2023: 36(1-12), 2024: 37(1-12), 2025: 38(1-12), 2026: 39(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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38
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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 6); 2 (1 to 6); 3 (1 to 9, 11, 12); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12)
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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 6); 2 (1 to 6); 3 (1 to 9, 11, 12); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 21 (1 to 6); 22 (1 to 9, 11, 12); 23 (1 to 9, 11, 12); 24 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 29 (1 to 9, 11, 12); 31 (1 to 9, 11, 12); 32 (1 to 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 9, 11, 12); 36 (1 to 9, 11, 12)
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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 : 19 (1-6); 20 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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15 (5); 16 (3); 21 (1); 23 (10); 25 (10); 27 (11, 12); 28 (1 to 12); 29 (1 to 10, 12); 30 (1 to 5, 8 to 12); 31 (1 to 8, 10 to 12); 32 (1, 2, 4, 6 to 8, 10, 12); 33 (1 to 4, 6 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1, 6, 8 to 10)
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