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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 (1 to 6); 7 (1 to 6); 8 (1 to 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 12); 16 (1 to 12); 17 (1 to 12); 18 (1, 2-3, 4 to 10, 11-12); 19 (1 to 5, 6-7, 8, 9, 10-11, 12); 20 (1 to 5, 6-7, 8 to 12); 21 (1 to 8, 9-10, 11, 12); 22 (1 to 5, 6-7, 8 to 12); 23 (1 to 10, 11-12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 11); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 8, 9-10, 11-12); 34 (1-2, 3-4, 5, 6-7, 8-9, 10, 11); 35 (1)
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LOCKSS Archive
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In Progress
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2026-05-25
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CLOCKSS Archive
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Preserved
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2026-05-25
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1 to 34
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Portico
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Preserved
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2026-05-28
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Preserved : 1971: 3(3, 5), 1972: 4(4), 1973: 5(1), 1974: 6(1)
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Portico
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Preserved
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2026-05-28
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Preserved : 1979: 11(3-4)
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Portico
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Preserved
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2026-05-28
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Preserved : 1983: 15(S 1)
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Portico
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Preserved
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2026-05-28
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Preserved : 1984: 16(7), 1985: 17(1, 5, 9)
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Portico
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Preserved
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2026-05-28
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Preserved : 1987: 19(5, 9-11), 1988: 20(6-7)
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Portico
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Preserved
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2026-05-28
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Preserved : 1990: 22(4-5)
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Portico
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Preserved
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2026-05-28
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Preserved : 1992: 24(1, 10), 1993: 25(8, 11-12), 1994: 26(1, 3, 10-12), 1995: 27(3, 8-10, 12), 1996: 28(1-10, 12), 1997: 29(1-12)
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Portico
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Preserved
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2026-05-28
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Preserved : 1998: 30(7), 1999: 31(4, 11)
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Portico
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Preserved
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2026-05-28
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Preserved : 2001: 33(2), 2002/2003: 34(1-4, 6-9, 11-12)
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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 : 29 (2-11); 30 (1-12); 31 (1-12); 33 (1-9, 11); 34 (1, 3, 5, 6, 8, 10, 11); 35 (1)
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