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Portico
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Preserved
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2026-04-09
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Preserved : 1990/1993: 20(1-4, Index), 1991: 21(1-4), 1991/1993: 22(1-2, Index 1, 3-4), 1992: 23(C), 1992/1993: 24(1, Index 1, 2-4), 1992: 25(1-4), 1993: 26(C), 1993: 27(1-4), 1994: 28(1-4), 1994: 29(1-4), 1995: 30(1-4), 1995: 31(1-4), 1996: 32(1-4), 1996: 33(1-4), 1997: 34(1-4), 1997: 35(1-4), 1998: 36(1-4), 1998: 37(1-4), 1999: 38(1-4), 1999: 39(1-4), 2000: 40(1-4), 2000: 41(1-4), 2001: 42(1-3), 2001: 43(1-3), 2002: 44(1-3), 2002: 45(1-3), 2003: 46(1-3), 2003: 47(1-3), 2004: 48(C)
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CLOCKSS Archive
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Preserved
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2026-04-06
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20 to 48, 50 to 72
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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 20 (1-2, 3, 4); 21 (1-4); 22 (Index, 1-2, 3, 4); 23 (Complete); 24 (1 to 4); 25 (1-2, 3, 4); 26 (Complete); 27 (1, 2, 3-4); 28 (1-2, 3, 4); 29 (1-4); 30 (2-3, 4); 31 (1-2, 3-4); 32 (1-3, 4); 33 (1-3, 4); 34 (1-4); 35 (2-4); 36 (1-2, 3, 4); 37 (1, 2-3, 4); 38 (1-4); 39; 40; 41; 42 (3); 43 (1, 2-3); 44 (1 to 3); 45 (1-2, 3); 46 (1-2, 3); 47 (1, 2-3); 48-49 (Complete); 50 (1-3); 51; 52 (3, 4); 53 (1, 2, 3-4); 54 (1-2, 3-4); 55 (1-2, 3-4); 56 (1-2, 3-4); 57 (1, 2-3, 4); 58 (1, 2-3, 4); 59 (1 to 4); 60 (1, 2, 3-4); 61 (1, 2-4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1, 4); 67 (1 to 4); 68 (1 to 4); 69 (1, 2); 70 (1 to 4); 71 (1 to 4); 72 (1)
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Portico
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Preserved
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2026-04-09
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Preserved : 2005: 50(1-3), 2005: 51(1-3), 2006: 52(1-4), 2007: 53(1-4), 2008: 54(1-4), 2009: 55(1-4), 2010: 56(1-4), 2011: 57(1-4), 2012: 58(1-4), 2013: 59(1-4), 2014: 60(1-4), 2015: 61(1-4), 2016: 62(1-4), 2017: 63(1-4), 2018: 64(1-4), 2019: 65(1-4), 2020: 66(1-4), 2021: 67(1-4), 2022: 68(1-4), 2023: 69(1-4), 2024: 70(1-4), 2025: 71(1-4), 2026: 72(1)
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Internet Archive
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Preserved
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2025-08-08
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19 to 52
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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 : 5 (I1); 20 (1-2, I, 3, 4); 21 (1-4); 22 (I1, 1-2, 4); 23 (C); 24 (3, 4); 25 (1-2, 3); 26 (C); 27 (1, 3-4); 28 (1-2, 3); 29 (1-4); 30 (2-3, 4); 31 (1-2, 3-4); 32 (1-3, 4); 33 (1-3, 4); 34 (1-4); 35 (2-4); 36 (1-2, 4); 37 (2-3, 4); 38 (1-4); 39; 40; 41; 42 (3); 43 (2-3); 44 (1, 3); 45 (1-2, 3); 46; 47 (1, 2-3); 48-49 (C); 50 (1-3); 51; 52 (3, 4); 53 (2, 3-4); 54 (1-2, 3-4); 55; 56 (1-2, 3-4); 57 (1, 2-3, 4); 58 (1, 2-3, 4); 59 (1, 2, 4); 60 (2, 3-4); 61 (1, 2-4); 62 (1-3); 63 (1-4); 64 (1, 2, 4); 65 (1, 2)
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