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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 (1-2, 3, 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1, 2-3, 4); 17 (1-2, 3-4); 18 (1-2, 3-4); 19 (1-2, 3-4); 20 (1-2, 3-4); 21 (1-2, 3, 4); 22 (1-2, 3-4); 23 (1-2, 3-4); 24 (1-2, 3-4); 25 (1-2, 3-4); 26 (1-2, 3-4); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1-2); 36 (2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1, 2, 5); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 50 (1-2); 51 (2); 52 (1, 2); 53 (1, 2); 54 (1, 2); 55 (1, 2); 56 (1, 2); 57 (1, 2); 58 (1, 2); 59 (1, 2); 60 (1, 2); 61 (1, 2); 62 (1, 2); 63 (1, 2); 64 (1, 2); 65 (1, 2); 66 (1, 2); 67 (1, 2); 68 (1, 2); 69 (1, 2); 70 (1, 2); 71 (1, 2); 72 (1, 2); 73 (1, 2); 74 (1, 2); 75 (1, 2); 76 (1, 2); 77 (1, 2); 78 (1, 2); 79 (1, 2); 80 (1, 2); 81 (1, 2); 82 (1, 2); 83 (1, 2); 84 (1, 2); 85 (1, 2); 86 (1, 2); 87 (1, 2); 88 (1, 2); 89 (1, 2); 90 (1, 2); 91 (1, 2); 92 (1, 2); 93 (1, 2); 94 (1, 2); 95 (1, 2); 96 (1, 2); 97 (1, 2); 98 (1, 2)
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LOCKSS Archive
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In Progress
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2026-06-15
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Portico
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Preserved
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2026-06-18
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Preserved : 1974: 1(2), 1975: 2(1-2, 4), 1975: 3(2, 4)
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CLOCKSS Archive
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Preserved
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2026-06-15
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1 to 98
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Portico
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Preserved
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2026-06-18
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Preserved : 1976: 4(4), 1976: 5(3), 1977: 6(2, 4), 1978: 8(1-3), 1979: 10(3-4), 1979: 12(2)
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Portico
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Preserved
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2026-06-18
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Preserved : 1980: 13(2-4), 1980/1981: 15(2, 4), 1981: 16(1-4), 1981: 17(1-4), 1981: 18(3-4), 1982: 19(3-4), 1982: 20(3-4), 1982: 21(1-4)
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Portico
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Preserved
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2026-06-18
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Preserved : 1987: 33(2)
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Portico
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Preserved
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2026-06-18
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Preserved : 1993: 49(2), 1994: 52(1-2), 1995: 54(2), 1995: 56(1), 1996: 57(1), 1996: 59(2), 1997: 60(1-2), 1997: 61(1-2), 1997: 62(1-2), 1998: 63(1-2), 1998: 64(1-2), 1998: 65(1-2), 1999: 66(1-2), 1999: 67(1-2), 1999: 68(1-2), 2000: 69(1-2), 2000: 70(1-2), 2000: 71(1-2), 2001: 72(1-2), 2001: 73(1-2), 2001: 74(1-2), 2002: 75(1-2), 2002: 76(1-2), 2002: 77(1-2), 2003: 78(1-2), 2003: 79(1-2), 2003: 80(1-2), 2004: 81(1-2), 2004: 82(1-2), 2004: 83(1-2), 2005: 84(1-2), 2005: 85(1-2), 2005: 86(1-2), 2005/2006: 87(1-2), 2006: 88(1-2), 2006: 89(1-2), 2007: 90(1-2), 2007: 91(1-2), 2007: 92(1-2), 2008: 93(1-2), 2008: 94(1-2), 2008: 95(1-2), 2009: 96(1-2), 2009: 97(1-2), 2009: 98(1-2)
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Portico
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Preserved
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2026-06-18
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Preserved : 2000: 41(5), 1991: 43(1)
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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 : 21 (3); 34 (6); 63 (2); 69 (1, 2); 70 (1, 2); 71 (1, 2); 72 (1, 2); 73 (1, 2); 74 (1, 2); 75 (1, 2); 76 (1, 2); 77 (1, 2); 78 (1, 2); 79 (1, 2); 80 (1, 2); 81 (1); 82; 83 (2); 84 (1, 2); 85 (1, 2); 86 (1, 2); 87 (1, 2); 88 (1, 2); 89 (1, 2); 90 (1, 2); 91 (1, 2); 92 (1, 2); 93 (1, 2); 94 (1, 2); 95 (1, 2); 96 (1, 2); 97 (1, 2); 98 (1, 2)
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