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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (2); 2; 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 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 8); 22 (1 to 8); 23 (1 to 8); 24 (1 to 8); 25 (1 to 8); 26 (1 to 8); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 3, 5 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 14); 36 (1 to 14); 37 (1 to 16); 38 (1 to 18); 39 (1 to 18); 40 (1 to 18); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1, 3, 5 to 12); 46 (1 to 12); 47 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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4 to 35
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CLOCKSS Archive
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In Progress
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2026-04-13
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1 to 28, 37 to 47
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LOCKSS Archive
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In Progress
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2026-04-13
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1 to 23, 46, 47
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Portico
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Preserved
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2026-04-16
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Preserved : 1980: 1(1-4), 1981: 2(1-4), 1982: 3(1-4), 1983: 4(1-4), 1984: 5(1-4), 1985: 6(1-4), 1986: 7(1-4), 1987: 8(1-4), 1988: 9(1-4), 1989: 10(1-4), 1990: 11(1-4), 1991: 12(1-4), 1992: 13(1-4), 1993: 14(1-4), 1994: 15(1-4), 1995: 16(1-6), 1996: 17(1-6), 1997: 18(1-6), 1998: 19(1-6), 1999: 20(1-6), 2000: 21(1-8), 2001: 22(1-8), 2002: 23(1-8), 2003: 24(1-8), 2004: 25(1-8), 2005: 26(1-8), 2006: 27(1-12), 2007: 28(1-12), 2008: 29(1-12), 2009: 30(1-12), 2010: 31(1-12), 2011: 32(1-12), 2012: 33(1-12), 2013: 34(1-12), 2014: 35(1-14), 2015: 36(1-14), 2016: 37(1-16), 2017: 38(1-18), 2018: 39(1-18), 2019: 40(1-18), 2020: 41(1-12), 2021: 42(3-12), 2022: 43(1-12), 2023: 44(1-12), 2024: 45(1-12), 2025: 46(1-12), 2026: 47(1-5)
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LOCKSS Archive
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Preserved
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2026-04-13
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24 to 45
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CLOCKSS Archive
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Preserved
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2026-04-13
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29 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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31 (1 to 12); 32 (1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 14); 36 (1 to 14); 37 (1 to 16); 38 (1 to 7, 9 to 18); 39 (1 to 9, 11 to 14, 16 to 18); 40 (1, 3 to 18); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (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 : 1 (2); 2; 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-8); 22 (1-8); 23 (1-8); 24 (1-8); 25 (1-8); 26 (1-8); 27 (1-12); 28 (1-12); 29 (1-12); 30 (3-12); 31 (1-12); 32 (1-9); 33 (1-12); 34 (1-12); 35 (1-14); 36 (1-9, 11, 13, 14); 37 (1-16); 38 (1-18); 39 (1-18); 40 (1-18)
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British Library
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Preserved
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2019-09-18
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Preserved : 35 (1 to 14), 36 (1 to 14), 37 (1 to 16), 38 (1 to 18), 39 (1 to 16)
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