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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 3); 2 (4, 6); 3 (7 to 9); 4 (10 to 12); 5 (13 to 15); 6 (16 to 18); 7 (19 to 21); 8 (22 to 24); 9 (25, 27); 10 (28 to 30); 11 (31 to 33); 12 (34 to 36); 13 (37 to 39); 14 (3, 40, 41, 42-43); 15 (1, 44, 45); 16 (46 to 48); 17 (49 to 51); 18 (52 to 54); 19 (56, 57); 20 (58 to 60); 21 (61 to 63); 23 (1 to 3); 24 (1 to 3); 25 (1 to 3); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1, 2, 3-4); 31 (1 to 4); 32 (1-2, 3, 4); 33 (1 to 6); 34 (1 to 6); 35 (1 to 3, 4-5, 6); 36 (1 to 6); 37 (1 to 3, 5, 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 4, 5-6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 27
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CLOCKSS Archive
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In Progress
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2026-04-06
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1 to 24, 26, 37 to 39, 41 to 46
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LOCKSS Archive
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In Progress
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2026-04-06
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1 to 22, 46
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Portico
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Preserved
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2026-04-09
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Preserved : 1980: 1(1-3), 1981: 2(4, 6), 1982: 3(7-9), 1983: 4(10-12), 1984: 5(13-15), 1986: 6(16-18), 1987: 7(19-21), 1988: 8(22-24), 1989: 9(6, 25, 27), 1990: 10(28-30), 1991: 11(31-33), 1992: 12(34-36), 1993: 13(37-39), 1994: 14(40-43), 1995: 15(1, 44-45), 1996: 16(46-48), 1997: 17(49-51), 1998: 18(52-54), 1999: 19(55-57), 2000: 20(58-60), 2001: 21(61-63), 2002: 22(1-3), 2003: 23(1-3), 2004: 24(1-3), 2005: 25(1-3), 2006: 26(1-4), 2007: 27(1-4), 2008: 28(1-4), 2009: 29(1-4), 2010: 30(1-4), 2011: 31(1-4), 2012: 32(1-4), 2013: 33(1-6), 2014: 34(1-6), 2015: 35(1-6), 2016: 36(1-6), 2017: 37(1-6), 2018: 38(1-6), 2019: 39(1-6), 2020: 40(1-6), 2021: 41(1, 3-6), 2022: 42(1-6), 2023: 43(1-6), 2024: 44(1-6), 2025: 45(1-6), 2026: 46(1-2)
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LOCKSS Archive
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Preserved
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2026-04-06
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23 to 45
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CLOCKSS Archive
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Preserved
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2026-04-06
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25, 27 to 36, 40
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Library of Congress
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Preserved
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2025-04-07
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30 (1 to 3-4); 31 (1 to 4); 32 (1-2, 3, 4); 33 (1 to 6); 34 (1 to 6); 35 (1 to 4-5, 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 5-6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (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 : 1 (1-3); 2 (4, 6); 3 (7-9); 4 (10-12); 5 (13-15); 6 (16-18); 7 (19-21); 8 (22-24); 9 (25, 27); 10 (28-30); 11 (31-33); 12 (34-36); 13 (37-39); 14 (40, 41, 42-43); 15 (1, 44, 45); 16 (46-48); 17 (49-51); 18 (52-54); 19 (56, 57); 20 (58-60); 21 (61-63); 23 (1-3); 24 (1-3); 25 (1-3); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1, 2, 3-4); 31 (1-3); 32 (1-2, 3, 4); 33 (1-6); 34 (1-6); 35 (1, 2, 4-5, 6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6)
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British Library
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Preserved
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2019-09-18
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Preserved : 34 (1 to 6), 35 (1 to 3; 6), 36 (1 to 6), 37 (1 to 6), 38 (1 to 5)
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