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Portico
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Preserved
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2026-04-16
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Preserved : 1986: 1(1-4), 1987: 2(1-4), 1988: 3(1-4), 1989: 4(1-4), 1990: 5(1-4), 1990: 6(1-4), 1991: 7(1-4), 1991: 8(1-4), 1992: 9(1-4), 1992: 10(1-4), 1992: 11(1-4), 1993: 12(1-4), 1993: 13(1-4), 1993: 14(1-4), 1994: 15(1-4), 1994: 16(1-4), 1994: 17(1-4)
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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 4); 3 (1 to 4); 4 (1 to 4); 5 (1, 2-4); 6 (1 to 4); 7 (1 to 4); 8 (1-2, 3-4); 9 (1, 2, 3-4); 10 (1-2, 3, 4); 11 (1-4); 12 (2 to 4); 13 (1-4); 14 (2 to 4); 15 (1 to 4); 16 (1 to 3); 17 (1 to 4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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1 to 17
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Internet Archive
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Preserved
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2025-08-08
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5 to 17
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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 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1, 2-4); 6 (1-4); 7 (1-4); 8 (1-2, 3-4); 9 (1, 2, 3-4); 10 (1-2, 3, 4); 11 (1-4); 12 (2-4); 13 (1-4); 14 (2-4); 15 (1-4); 16 (1-4); 17 (1-4)
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