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