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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 6); 3 (, 1 to 6); 4 (, 2 to 6); 5 (, 1 to 3, 5, 6); 6 (, 1 to 6); 7 (, 1 to 3, 5, 6); 8 (, 3 to 6); 9 (, 1, 3 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1S, 2 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1 to 6); 24 (, 1 to 5, 6_suppl); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 4 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 6); 32 (, 1_suppl, 2 to 8, 1859); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 12); 36 (, 1 to 12); 37 (, 1_suppl, 2 to 12); 38 (, 1 to 12); 39 (, 1_suppl, 2 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1 to 12); 45 (, 1 to 14); 46 (, 1 to 14); 47 (, 1 to 14); 48 (, 1 to 14); 49 (, 1 to 14); 50 (, 1 to 14); 51 (, 1 to 14); 52 (, 1 to 14); 53 (, 1 to 9); 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 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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14 to 42
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Portico
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Preserved
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2026-02-12
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Preserved : 1972/1973: 1(1-4), 1974: 2(1-6), 1975: 3(1-6), 1976: 4(1-6), 1977: 5(1-6), 1978: 6(1-6), 1979: 7(1-6), 1980: 8(1-6), 1981: 9(1-6), 1982: 10(1-6), 1983: 11(1-6), 1984: 12(1-6), 1985: 13(1-6), 1986: 14(1-6), 1987: 15(1-6), 1988: 16(1, 1, S, 2-6), 1989: 17(1-6), 1990: 18(1-6), 1991: 19(1-6), 1992: 20(1-6), 1993: 21(1-6), 1994: 22(1-6), 1995: 23(1-6), 1996: 24(1-6, 6, S), 1997: 25(1-6), 1998: 26(1-6), 1999: 27(1-6), 2000: 28(1-5, 5, S, 6), 2001: 29(1-6), 2002: 30(1-6), 2003: 31(1-6), 2004: 32(1-8), 2005: 33(1-12), 2006: 34(1-12), 2007: 35(1-12), 2008/2009: 36(1-12), 2009: 37(1-12), 2010: 38(1-12), 2011: 39(1-12), 2012: 40(1-12), 2013: 41(1-12), 2014: 42(1-12), 2015: 43(1-12), 2016: 44(1-12), 2017: 45(1-14), 2018: 46(1-14), 2019: 47(1-14), 2020: 48(1-12), 2021: 49(4-5, 7-14), 2022: 50(1-14), 2023: 51(1-14), 2024: 52(1-14), 2025: 53(1-14), 2026: 54(1-2)
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CLOCKSS Archive
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In Progress
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2026-02-09
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4 to 32, 34, 45 to 53
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LOCKSS Archive
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Preserved
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2026-02-09
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28, 31 to 52
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LOCKSS Archive
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In Progress
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2026-02-09
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29, 30, 53
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CLOCKSS Archive
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Preserved
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2026-02-09
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33, 35 to 44
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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 (1-6); 3 (1-6); 4 (1-6); 5 (1-6); 6 (1-6); 7 (1-6); 8 (1-6); 9 (1-6); 10 (1-6); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-6); 16 (1S, 2-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-6); 25 (1-6); 26 (1-6); 27 (S3, 1-6); 28 (1-6); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-8); 33 (1-12); 34 (1-12); 35 (1-12); 36 (1-12); 37 (1-12); 38 (1-12); 39 (1-8, 10, 12); 40 (1-12); 41 (1-12); 42 (1-12); 43 (1-6, 8-12); 44 (1-12); 45 (1-14); 46 (1-14); 47 (1-13)
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Library of Congress
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Preserved
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2025-04-07
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38 (1 to 12); 39 (1_suppl, 1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 14); 46 (1 to 14); 47 (1 to 14); 48 (1 to 14); 49 (1 to 14); 50 (1 to 14); 51 (1 to 14); 52 (1 to 13)
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