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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 6 (1 to 4); 7 (2 to 4); 8 (1, 2, 4); 9 (1 to 4); 10 (1S, 2 to 4); 11 (1S, 2, 3); 12 (1S, 2 to 4); 13 (1S, 2, 3); 14 (1, 3); 15 (2); 16 (6); 17 (1, 3, 5, 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 3, 5); 21 (2 to 6); 22 (1 to 4, 6); 23 (1 to 6); 24 (1 to 4, 6); 25 (1 to 5, 6_suppl); 26 (1 to 6); 27 (1 to 3 to 6); 28 (1_suppl, 2 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 4 to 6); 33 (s3, 1 to 3, 4 to 6, 7s); 34 (1 to 4 to 6); 35 (1 to 3 to 6); 36 (1_suppl, 2 to 6); 37 (1_suppl, 2 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1_suppl, 2 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1_suppl, 2 to 6); 46 (1 to 3 to 5, 6)
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Portico
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Preserved
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2026-04-09
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Preserved : 1980: 6(1-4), 1981/1982: 7(2-4), 1982: 8(1-2)
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Portico
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Preserved
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2026-04-09
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Preserved : 1983: 8(4), 1983/1984: 9(1-4), 1984/1985: 10(1, S, 2-4), 1985: 11(1, 1, S, 2-3), 1986: 12(1-4), 1987: 13(1, 1, S, 2-4), 1988: 14(1-6), 1989: 15(1-6), 1990: 16(1-6), 1991: 17(1-6), 1992: 18(1-6), 1993: 19(1-6), 1994: 20(1-6), 1995: 21(1-6), 1996: 22(1-6), 1997: 23(1-6), 1998: 24(1-6), 1999: 25(1-6), 2000: 26(1-6), 2001: 27(1-6), 2002: 28(1-6), 2003: 29(1-6), 2004: 30(1-6), 2005: 31(1-6), 2006: 32(1-3, 3, S, s3-4, 4, S, s4-6), 2007: 33(1-3, Sup3, S 3, s_3-4, 4, S, s4-5, 5, S, s_5-6, S 6, s_6, 7, S, s_7), 2008: 34(1, 1, S, s1-4, 4, S, s4-6), 2009: 35(1-6), 2010: 36(1-6), 2011: 37(1-6), 2012: 38(1-4, 4, S, s4-6), 2013: 39(1-6), 2014: 40(1-6), 2015: 41(1, 1, S, 2-6), 2016: 42(1-6), 2017: 43(1-6), 2018: 44(1-6), 2019: 45(1, 1, S, 2-6), 2020: 46(1-4, 4, S, 5-6)
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LOCKSS Archive
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In Progress
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2026-04-06
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6 to 28
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CLOCKSS Archive
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In Progress
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2026-04-06
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6 to 30, 43 to 46
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LOCKSS Archive
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Preserved
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2026-04-06
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29 to 46
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CLOCKSS Archive
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Preserved
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2026-04-06
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31 to 42
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Library of Congress
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Preserved
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2025-04-07
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36 (3_suppl, 2_suppl, 1_suppl, 1 to 6); 37 (1_suppl, 1 to 6); 38 (4_suppl, 2); 39 (3, 4, 6); 40 (1_suppl); 41 (1_suppl, 1); 42 (3); 43 (1, 2, 5); 44 (1, 2, 4 to 6); 45 (1_suppl, 3 to 6); 46 (4_suppl, 1 to 6)
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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 : 6 (1-4); 7 (2-4); 8 (1, 2, 4); 9 (1-4); 10 (1S, 2-4); 11 (1-3); 12 (1-4); 13 (1-3); 14 (1, 3); 15 (2); 16 (6); 17 (1, 3, 5, 6); 18 (1-6); 19 (1-6); 20 (1-3, 5); 21 (2-6); 22 (1, 2, 4, 6); 23 (1-6); 24 (1-4, 6); 25 (1-6); 26 (1-6); 27 (1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (S6, 1-6, 7s); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-4); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-3, 6); 42 (1-6); 43 (1-6); 44 (1-6); 45 (1-5)
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British Library
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Preserved
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2019-09-18
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Preserved : 40 (1 to 6), 41 (1 to 6), 42 (1 to 6), 43 (1 to 6), 44 (1 to 5)
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