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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 to 6); 2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 6); 6 (Supplement, 1 to 6); 7 (1 to 6); 8 (1 to 3, 5, 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 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 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 7); 35 (1 to 7); 36 (1 to 7); 37 (1 to 6); 38 (1 to 6)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 38
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Portico
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Preserved
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2026-04-23
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Preserved : 1984: 1(1-6), 1985: 2(1-6), 1986: 3(1-6), 1987: 4(1-6), 1988: 5(1-6), 1989: 6(1-6, S 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(1-6), 1999: 16(1-6), 2000: 17(1-6), 2001: 18(1-6), 2002: 19(1-6), 2003: 20(1-6), 2004: 21(1-6), 2005: 22(1-6), 2006: 23(1-6), 2007: 24(1-6), 2008: 25(1-6), 2009: 26(1-6), 2010: 27(1-6), 2011: 28(1-6), 2012: 29(1-6), 2013: 30(1-6), 2014: 31(1-6), 2015: 32(1-6), 2016: 33(1-6), 2017: 34(1-7), 2018: 35(1-7), 2019: 36(1-7), 2020: 37(1-5), 2021: 38(1-6)
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CLOCKSS Archive
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In Progress
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2026-04-13
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2 to 43
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LOCKSS Archive
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In Progress
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2026-04-13
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2 to 16, 42, 43
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LOCKSS Archive
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Preserved
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2026-04-13
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17 to 41
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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 : 31 (3, 5); 34 (2, 3, 7); 35 (1, 2); 36 (4, 6)
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