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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 11 (1 to 3); 12 (1, 2); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 20 (1, 3); 21 (1, 2-3); 22 (1, 2‐3); 23 (1, 2‐3); 24 (1‐2, 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 30 (1 to 3); 31 (1-2, 3)
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Portico
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Preserved
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2026-04-23
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Preserved : 1989: 1(1-2), 1990: 2(1-2), 1991: 3(1-2), 1992: 4(1-2), 1993: 5(1-2), 1994: 6(1-2), 1995: 7(1-2), 1996: 8(1-2), 1997: 9(1-2), 1998: 10(1-2), 1999: 11(1-3), 2000: 12(1-3), 2001: 13(1-3), 2002: 14(1-3), 2003: 15(1-3), 2004: 16(1-3), 2005: 17(1-3), 2006: 18(1-3), 2007: 19(1-3), 2008: 20(1), 2009: 21(1), 2010: 22(1), 2011: 23(1-3), 2012: 24(1-3), 2013: 25(1-3), 2014: 26(1-3), 2015: 27(1-3), 2016: 28(1-3), 2017: 29(1-3), 2018: 30(1-3), 2019: 31(1-3)
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CLOCKSS Archive
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Preserved
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2026-04-13
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3 to 31
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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 : 18 (1, 3); 19 (1, 2)
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