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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, 2); 2 (4-5, 6 to 8); 3 (9-10, 11, 12); 4 (13-14, 15, 16); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1, 2-3); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (2 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 3); 34 (1 to 4); 35 (1 to 4); 36 (1, 2, 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1)
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Internet Archive
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Preserved
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2025-08-08
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3 to 18
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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 26, 37 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 : 1974: 1(1-2), 1975/1976/1977: 2(3-8), 1978: 3(9-12), 1979/1980/1981: 4(13-16), 1985: 5(1-3), 1986: 6(1-3), 1987/1988: 7(1-3), 1988: 8(1-3), 1989: 9(1-3), 1990: 10(1-3), 1991: 11(1-4), 1992: 12(1-4), 1993: 13(1-4), 1994: 14(1-4), 1995: 15(1-4), 1996: 16(1-4), 1997: 17(1-4), 1998: 18(1-4), 1999: 19(1-4), 2000: 20(1-4), 2001: 21(1-4), 2002: 22(1-4), 2003: 23(1-4), 2004: 24(1-4), 2005: 25(1-4), 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(1-4), 2014: 34(1-4), 2015: 35(1-4), 2016: 36(1-4), 2017: 37(1-4), 2018: 38(1-4), 2019: 39(1-4), 2020: 40(1-4), 2021: 41(1-4), 2022: 42(1-4), 2023: 43(1-4), 2024: 44(1-4), 2025: 45(1-4), 2026: 46(1)
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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
|
2026-04-06
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27 to 36
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Library of Congress
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Preserved
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2025-04-07
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|
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30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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|
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Preserved : 1 (1, 2); 2 (4-5, 6-8); 3 (9-10, 11, 12); 4 (13-14, 15, 16); 5 (1-3); 6 (1-3); 7 (1-3); 8 (1-3); 9 (1-3); 10 (1, 2-3); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (2-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-3); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1, 2, 4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1, 3, 4)
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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 4), 35 (1 to 4), 36 (1 to 4), 37 (1 to 4), 38 (1 to 3)
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