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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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 6); 23 (, 1 to 6); 24 (, 1 to 15); 25 (, 1 to 15); 26 (, 1 to 15); 27 (, 1 to 15); 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); 37 (, 1 to 12); 38 (, 1 to 12); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 12); 46 (, 1 to 12); 47 (, 1 to 12); 48 (, 1 to 8); 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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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 1(1, 5), 1987: 2(4-5), 1988: 3(3), 1989: 4(1, 3-5)
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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 43
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 6(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 7(2, 4), 1993: 8(1, 5-6), 1993: 9(2-3), 1994: 10(1, 6), 1994: 11(4), 1995: 12(2), 1995: 13(5), 1996: 14(2, 4), 1996: 15(3), 1997: 16(1-6), 1997: 17(1-6), 1998: 18(1-6), 1998: 19(1-6), 1999: 20(1-6), 1999/2012: 21(1-6), 2000: 22(1-6), 2000: 23(1-6), 2001: 24(1-15), 2002: 25(1-15), 2003: 26(1-15), 2004/2012: 27(1-15), 2005: 28(1-12), 2006: 29(1-12), 2007: 30(1-12), 2008: 31(1-12), 2009: 32(1-12), 2010: 33(1-12), 2011: 34(1-12), 2012: 35(1-12), 2013: 36(1-12), 2014: 37(1-12), 2015: 38(1-12), 2016: 39(1-12), 2017: 40(1-12), 2018: 41(1-12), 2019: 42(1-12), 2019/2020: 43(1-12), 2021: 44(1-12), 2022: 45(1-12), 2023: 46(1-12), 2024: 47(1-12), 2025: 48(1-12), 2026: 49(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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16 to 49
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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 : 47 (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 : 47 (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 : 17 (2); 22 (3); 27 (5, 15); 28 (2, 7, 9, 12); 29 (4, 10, 11); 30 (2, 7, 8, 10, 11); 31 (1, 7, 9, 10); 32 (1-3, 5, 7, 8, 11, 12); 33 (2-4, 6, 8, 10-12); 34 (2-12); 35 (supplement-1, 1-12); 36 (supplement-1, 1-8, 10-12); 37 (supplement-1, 1-9, 11, 12); 38 (1-12); 39 (1-12); 40 (1-12); 41 (1-12); 42 (1-11)
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