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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 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); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 6); 66 (, 1 to 6); 67 (, 1-3, 4-6); 68 (, 1-3); 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 56
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Portico
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Preserved
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2026-02-12
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Preserved : 1958: 1(1-2), 1959: 2(1-2), 1960: 3(1-2), 1961: 4(1-2), 1962: 5(1-2), 1963: 6(1-2), 1964: 7(1-2), 1965: 8(1-2), 1966: 9(1-2), 1967: 10(1-2), 1968: 11(1-2), 1969: 12(1-2), 1970: 13(1-4), 1971: 14(1-4), 1972: 15(1-4), 1973: 16(1-4), 1974: 17(1-4), 1975: 18(1-4), 1976: 19(1-4), 1977: 20(1-4), 1978: 21(1-4), 1979: 22(1-4), 1980: 23(1-4), 1981: 24(1-4), 1982: 25(1-4), 1983: 26(1-4), 1984: 27(1-4), 1985: 28(1-4), 1986: 29(1-4), 1987: 30(1-4), 1988: 31(1-4), 1989: 32(1-4), 1990: 33(1-4), 1991: 34(1-4), 1992: 35(1-4), 1993: 36(1-4), 1994: 37(1-4), 1995: 38(1-4), 1996: 39(1-4), 1997: 40(1-4), 1998: 41(1-4), 1999: 42(1-4), 2000: 43(1-4), 2001: 44(1-4), 2002: 45(1-4), 2003: 46(1-4), 2004: 47(1-4), 2005: 48(1-4), 2006: 49(1-4), 2007: 50(1-4), 2008: 51(1-4), 2009: 52(1-4), 2010: 53(1-4), 2011: 54(1-4), 2012: 55(1-4), 2013: 56(1-4), 2014: 57(1-4), 2015: 58(1-4), 2016: 59(1-4), 2017: 60(1-6), 2018: 61(1-6), 2019: 62(1-6), 2020: 63(1-5), 2021: 64(1-6), 2022: 65(1-6), 2023: 66(1-6), 2024: 67(1-6), 2025: 68(1-6)
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CLOCKSS Archive
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In Progress
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2026-02-09
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26 to 55, 60 to 68
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LOCKSS Archive
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In Progress
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2026-02-09
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26 to 43, 68
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LOCKSS Archive
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Preserved
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2026-02-09
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51 to 67
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CLOCKSS Archive
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Preserved
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2026-02-09
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56 to 59
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LOCKSS Archive
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Preserved
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2026-02-09
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44 to 50
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 44(1-4), 2002: 45(1-4), 2003: 46(1-4), 2004: 47(1-4), 2005: 48(1-4), 2006: 49(1-4), 2007: 50(1-4), 2008: 51(1-4), 2009: 52(1-4), 2010: 53(1-4), 2011: 54(1-4), 2012: 55(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2013: 56(3-4)
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Library of Congress
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Preserved
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2025-04-07
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53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1, 2, 4); 59 (2 to 4); 60 (1 to 6); 61 (1 to 6); 62 (1 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1 to 6); 67 (1-3, 4-6)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1); 8 (2); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 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 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (1-4); 57 (1-4); 58 (1, 2, 4); 59 (1-4); 60 (1-6); 61 (1-6); 62 (1-6); 69 (2)
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British Library
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Preserved
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2019-09-18
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Preserved : 20 (1 to 4), 21 (1 to 4), 22 (1 to 2), 57 (3 to 4), 58 (1 to 4), 59 (1 to 4), 60 (1 to 6), 61 (1 to 5)
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