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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 to 4); 2 (, 1 to 4); 3 (, 1 to 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 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 4, 5-6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 6); 25 (, 1 to 8); 26 (, 1-2, 3 to 8); 27 (, 1 to 10); 28 (, 1 to 10); 29 (, 1 to 10); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 12); 33 (, 1 to 12); 34 (, 1, 3 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1 to 12); 38 (, 1 to 6, 7-9, 10-12); 39 (, 1 to 6, 7-12); 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
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CLOCKSS Archive
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Preserved
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2026-02-09
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26 to 31
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LOCKSS Archive
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Preserved
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2026-02-09
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28
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 1(1-4), 1986: 2(1-4), 1987: 3(1-4), 1988: 4(1-4), 1989: 5(1-4), 1990: 6(1-4), 1991: 7(1-4), 1992: 8(1-4), 1993: 9(1-4), 1994: 10(1-4), 1995: 11(1-4), 1996: 12(1-4), 1997: 13(1-6), 1998: 14(1-6), 1999: 15(1-6), 2000: 16(1-6), 2001: 17(1-6), 2002: 18(1-6), 2003: 19(1-6), 2004: 20(1-6), 2005: 21(1-6), 2006: 22(1-6), 2007: 23(1-6), 2008: 24(1-6), 2009: 25(1-8), 2010: 26(1-8), 2011: 27(1-10), 2012: 28(1-10), 2013: 29(1-10), 2014: 30(1-12), 2014/2015: 31(1-12), 2016: 32(1-3)
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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 41
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 18, 41
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 1(1-4), 1986: 2(1-4), 1987: 3(1-4), 1988: 4(1-4), 1989: 5(1-4), 1990: 6(1-4), 1991: 7(1-4), 1992: 8(1-4), 1993: 9(1-4), 1994: 10(1-4), 1995: 11(1-4), 1996: 12(1-4), 1997: 13(1-6), 1998: 14(1-6), 1999: 15(1-6), 2000: 16(1-6), 2001: 17(1-6), 2002: 18(1-6), 2003: 19(1-6), 2004: 20(1-6), 2005: 21(1-6), 2006: 22(1-6), 2007: 23(1-6), 2008: 24(1-6), 2009: 25(1-8), 2010: 26(1-8), 2011: 27(1-10), 2012: 28(1-10), 2013: 29(1-10), 2014: 30(1-12), 2015: 31(1-12), 2016: 32(1-12), 2017: 33(1-12), 2018: 34(1-12), 2019: 35(1-10, 12), 2020: 36(1-12), 2021: 37(1-12), 2022: 38(1-12), 2023: 39(1-12), 2024: 40(1-12), 2025: 41(1-12), 2026: 42(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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19 to 40
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print to 39
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 39
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 16(1-6), 2001: 17(1-6), 2002: 18(1-6), 2003: 19(1-6), 2004: 20(1-6), 2005: 21(1-4), 2006: 22(1-6), 2007: 23(1-6), 2008: 24(1-6), 2009: 25(1-8), 2010: 26(3-8), 2011: 27(1-10), 2012: 28(1-10), 2013: 29(1-10), 2014: 30(1-12), 2015: 31(1-12), 2016: 32(1-12), 2017: 33(1-12), 2018: 34(1-12), 2019: 35(1-12), 2020: 36(1-12), 2021: 37(1-12), 2022: 38(1-12), 2023: 39(1-12)
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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 : 3 (1 to 9, 11, 12); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 8); 26 (1-2, 3 to 8); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 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); 37 (1 to 9, 11, 12); 38 (1 to 5)
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Library of Congress
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Preserved
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2025-04-07
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26 (1-2, 3 to 8); 27 (1 to 10); 28 (1 to 10); 29 (1 to 10); 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); 37 (1 to 12); 38 (1 to 7-9, 10-12); 39 (1 to 7-12); 40 (1 to 7-8, 9-10, 11-12); 41 (1)
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