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