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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 4); 2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1 to 12); 6 (1 to 12); 7 (1 to 12); 8 (1 to 12); 9 (1 to 12); 10 (1 to 12); 11 (1 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12); 20 (1 to 12); 21 (1 to 12); 22 (1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12)
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LOCKSS Archive
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In Progress
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2026-05-18
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Portico
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Preserved
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2026-05-21
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Preserved : 1980: 1(1-4), 1981: 2(1-6), 1982: 3(1-6), 1983: 4(1-6), 1984: 5(1-12), 1985: 6(1-12), 1986: 7(1-12), 1987: 8(1-12), 1988: 9(1-12), 1989: 10(1-12), 1990: 11(1-12), 1991: 12(1-12), 1992: 13(1-12), 1993: 14(1-12), 1994: 15(1-12), 1995: 16(1-12), 1996: 17(1-12), 1997: 18(1-12)
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CLOCKSS Archive
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Preserved
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2026-05-18
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1 to 29
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Portico
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Preserved
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2026-05-21
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Preserved : 1999: 20(4)
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Portico
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Preserved
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2026-05-21
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Preserved : 2003: 24(7)
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Portico
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Preserved
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2026-05-21
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Preserved : 2006: 27(2-4, 6-12), 2007: 28(1-2, 5-8, 10-12), 2008: 29(2-12)
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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 : 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1, 2, 6-12); 29 (1-12)
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