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