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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 6); 3 (, 1 to 6); 4 (, 1 to 6); 5 (, 1 to 6); 6 (, 1 to 6); 7 (, 1 to 6); 8 (, 1 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 17 (, 6, 7); 18 (, 1 to 8); 19 (, 1 to 8); 20 (, 1 to 8); 21 (, 1 to 8); 22 (, 1 to 10); 23 (, 1 to 10); 24 (, 1 to 10); 25 (, 1 to 10); 26 (, 1 to 8, 10); 27 (, 1 to 10); 28 (, 1 to 10); 29 (, 1 to 10); 30 (, 1 to 10); 31 (, 1 to 10); 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 6); 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 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 : 1984: 1(1-4), 1985: 2(1-6), 1986: 3(1-6), 1987: 4(1-6), 1988: 5(1-6), 1989: 6(1-6), 1990: 7(1-6), 1991: 8(1-6), 1992: 9(1-6), 1993: 10(1-6), 1994: 11(1-6), 1995: 12(1-6), 1996: 13(1-6), 1997: 14(1-6), 1998: 15(1-8), 1999: 16(1-8), 2000: 17(1-8), 2001: 18(1-8), 2002: 19(1-8), 2003: 20(1-8), 2004: 21(1-8), 2005: 22(1-10), 2006: 23(1-10), 2007: 24(1-10), 2008: 25(1-10), 2009: 26(1-10), 2010: 27(1-10), 2011: 28(1-10), 2012: 29(1-10), 2013: 30(1-10), 2014: 31(1-10), 2015: 32(1, S1, 2, S2, 3, S3, 4, S4, 5-12), 2016: 33(1-12), 2017: 34(1-12), 2018: 35(1-12), 2019: 36(1-12), 2020: 37(1-12), 2021: 38(1-12), 2022: 39(1-12), 2023: 40(1-12), 2024: 41(1-12), 2025: 42(1-12), 2026: 43(1-2)
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CLOCKSS Archive
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Preserved
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2026-02-09
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8 to 43
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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 : 23 (1-10); 24 (1-10)
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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 : 2 (, 1 to 8); 3 (1 to 9); 4 (1 to 9, 11, 12); 14 (, 1 to 6); 15 (1 to 8); 16 (, 1 to 8); 17 (, 1 to 8); 18 (1 to 8); 19 (1 to 8); 21 (1 to 8); 22 (1 to 9); 23 (1 to 9); 24 (1 to 9); 25 (1 to 9); 26 (1 to 9); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 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 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9)
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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 : 2 (, 1 to 8); 3 (1 to 9); 4 (1 to 9, 11, 12); 14 (, 1 to 6); 15 (1 to 8); 16 (, 1 to 8); 17 (, 1 to 8); 18 (1 to 8); 19 (1 to 8); 21 (1 to 8); 22 (1 to 9); 23 (1 to 9); 24 (1 to 9); 25 (1 to 9); 26 (1 to 9); 27 (1 to 9); 28 (1 to 9); 29 (1 to 9); 31 (1 to 9); 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 9, 11, 12); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1 to 9)
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