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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 11 (1); 12 (, 4); 13 (, 2_suppl); 14 (, 3_suppl); 16 (, 3); 18 (, 3, 4); 19 (, 3-4); 20 (, 1-2, 3-4); 21 (, 1, 2, 3-4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 3, 4_suppl); 26 (, 1 to 4, 5_suppl); 27 (, 1 to 4); 28 (, 1_suppl, 2 to 4); 29 (, 1_suppl, 2 to 4); 30 (, 1, 2, 3-4); 31 (, 1 to 3); 1999; 2000; 2001; 2002; 2004; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 1(1-3), 1990: 2(1-4), 1991: 3(1-4), 1992: 4(1-2, 4), 1993: 5(1-4), 1994: 6(1-4), 1995: 7(1-2, 4), 1996: 8(1-3), 1997: 9(1-4), 1998: 10(1-4), 1999: 11(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 12(4), 2001: 13(1, S, 2, S)
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 14(3, S)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 16(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2006: 18(3-4), 2007: 19(3-4), 2008: 20(1-4), 2009: 21(1-4), 2010: 22(1-4), 2011: 23(1-4), 2012: 24(1-4), 2013: 25(1-4, 4, S), 2014: 26(1-4, 5, S), 2015: 27(1-4), 2016: 28(1, 1, S, 2-4), 2017: 29(1, 1, S, 2-4), 2018: 30(1-4), 2019: 31(1-3)
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LOCKSS Archive
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In Progress
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2026-02-09
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13, 14
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CLOCKSS Archive
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In Progress
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2026-02-09
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13, 14, 16, 18, 30, 31
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LOCKSS Archive
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Preserved
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2026-02-09
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16, 18 to 31
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CLOCKSS Archive
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Preserved
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2026-02-09
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19 to 29
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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 : 1 (2, 3); 2 (1-4); 3 (1-4); 4 (1, 2, 4); 5 (1-4); 6 (1-4); 7 (1, 2, 4); 8 (1-3); 9 (1-4); 10 (1-4); 11 (1); 12 (4); 13 (1_suppl, 2_suppl); 14 (3_suppl); 16; 18 (4); 19 (3-4); 20 (1-2, 3-4); 21 (1, 2, 3-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4, 5_suppl); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1, 2, 3-4); 31 (1-3)
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