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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 20 (1 to 4); 21 (, 1 to 4); 22 (, 1 to 4); 23 (, 1 to 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 4); 32 (, 1 to 5); 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 1(1-4), 1982: 2(1-4), 1983: 3(1-4), 1984: 4(1-4), 1985: 5(1-4), 1986: 6(1-4), 1987: 7(1-4), 1988: 8(1-4), 1989: 9(1-4), 1990: 10(1-4), 1991: 11(1-4), 1992: 12(1-4), 1993: 13(1-4), 1994: 14(1-4), 1995: 15(1-4), 1996: 16(1-4), 1997: 17(1-4), 1998: 18(1-4), 1999: 19(1-4), 2000: 20(1-4), 2001: 21(1-4), 2002: 22(1-4), 2003: 23(1-4), 2004: 24(1-4), 2005: 25(1-4), 2006: 26(1-4), 2007: 27(1-4), 2008: 28(1-4), 2009: 29(1-4), 2010: 30(1-4), 2011: 31(1-4), 2012: 32(1-5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 1(1-4), 1982: 2(1-4), 1983: 3(1-4), 1984: 4(1-5), 1985: 5(1-4), 1986: 6(1-4), 1987: 7(1-4), 1988: 8(1-4), 1989: 9(1-4), 1990: 10(1-4), 1991: 11(1-4), 1992: 12(1-4), 1993: 13(1-4), 1994: 14(1-4), 1995: 15(1-4), 1996: 16(1-4), 1997: 17(1-4), 1998: 18(1-4), 1999: 19(1-4), 2000: 20(1-5), 2001: 21(1-4), 2002: 22(1-4), 2003: 23(1-4), 2004: 24(1-4), 2005: 25(1-4), 2006: 26(1-4), 2007: 27(1-4), 2008: 28(1-4), 2009: 29(1-4), 2010: 30(1-4), 2011: 31(1-4), 2012: 32(1-6), 2013: 33(1-6), 2014: 34(1-6), 2015: 35(1-6), 2016: 36(4)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 32
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Portico
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Preserved
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2026-02-12
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Preserved : 1983: 3(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 5(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1990: 10(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 13(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1996: 16(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2007: 27(2)
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LOCKSS Archive
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Preserved
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2026-02-09
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28 to 44
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CLOCKSS Archive
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In Progress
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2026-02-09
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28 to 45
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Portico
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Preserved
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2026-02-12
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Preserved : 2012: 32(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2014: 34(1-3), 2015: 35(1-6), 2016: 36(1-6), 2017: 37(1-6), 2018: 38(1-6), 2019: 39(1-6), 2020: 40(1-6), 2021: 41(1-4), 2022: 42(1-4), 2023: 43(1-4), 2024: 44(1-4), 2025: 45(1-4), 2026: 46(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2021: 5(11), 1986: 6(3)
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LOCKSS Archive
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In Progress
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2026-02-09
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45
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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 : 4 (1 to 6); 37 (3 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 4); 42 (1 to 4)
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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 : 4 (1 to 6); 37 (3 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 4); 42 (1 to 4)
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British Library
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Preserved
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2019-09-18
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Preserved : 37 (1 to 2; 4 to 5), 38 (3 to 4)
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