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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 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1 to 3); 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, 2, 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 39
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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 29, 31, 42 to 51
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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 24, 26, 27, 51
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Portico
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Preserved
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2026-04-02
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Preserved : 1976: 1(1-2), 1977: 2(1-2), 1978: 3(1-2), 1979: 4(1-2), 1980: 5(1-2), 1981: 6(1-2), 1982: 7(1-2), 1983: 8(1-2), 1984: 9(1-2), 1985: 10(1-2), 1986: 11(1-2), 1987: 12(1-2), 1988: 13(1-2), 1989: 14(1-2), 1990: 15(1-2), 1991: 16(1-2), 1992: 17(1-2), 1993: 18(1-2), 1994: 19(1-2), 1995: 20(1-2), 1996: 21(1-2), 1997: 22(1-2), 1998: 23(1-2), 1999: 24(1-2), 2000: 25(1-2), 2001: 26(1-2), 2002: 27(1-2), 2003: 28(1-2), 2004: 29(1-2), 2005: 30(1-3), 2006: 31(1-4), 2007: 32(1-4), 2008: 33(1-4), 2009: 34(1-4), 2010: 35(1-4), 2011: 36(1-4), 2012: 37(1-4), 2013: 38(1-4), 2014: 39(1-4), 2015: 40(1-4), 2016: 41(1-4), 2017: 42(1-4), 2018: 43(1-4), 2019: 44(1-4), 2020: 45(1-4), 2021: 46(1-4), 2022: 47(1-4), 2023: 48(1-4), 2024: 49(1-4), 2025: 50(1-4), 2026: 51(1)
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LOCKSS Archive
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Preserved
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2026-04-06
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25, 28 to 50
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CLOCKSS Archive
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Preserved
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2026-04-06
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30, 32 to 41
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Library of Congress
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Preserved
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2025-04-07
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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); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1, 2); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1, 2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1-3); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1, 2, 4); 37 (2-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4)
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British Library
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Preserved
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2019-09-18
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Preserved : 39 (1 to 4), 40 (1 to 4), 41 (1 to 4), 42 (1 to 4), 43 (1 to 3)
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