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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 11 (1 to 4); 12 (, 1 to 4); 13 (, 1 to 6); 14 (, 1 to 8); 15 (, 1 to 6); 16 (, 1 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 6); 25 (, 1 to 4, 5/6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 8); 29 (, 1 to 3, 4-5, 6 to 8); 30 (, 1 to 8); 31 (, 1 to 8); 32 (, 1 to 8); 33 (, 1 to 8); 34 (, 1 to 8); 35 (, 1 to 8); 36 (, 1 to 3, 4-5, 6 to 8); 37 (, 1 to 8); 38 (, 1 to 8); 39 (, 1 to 12); 40 (, 1 to 12); 41 (, 1 to 12); 42 (, 1, 2-3, 4 to 10, 11-12); 43 (, 1, 2-3, 4-5, 6-7, 8-9, 10-11, 12); 44 (, 1, 3 to 8); 45 (, 1 to 8); 46 (, 1 to 8); 47 (, 1 to 8); 48 (, 4 to 8); 49 (, 1, 2, 3-4, 5 to 8); 50 (, 1, 2, 3-4, 5 to 8); 51 (, 1 to 3, 4-5, 6, 7-8); 52 (, 1-2, 3, 4, 6-7, 8); 53 (, 1-2, 3, 4, 5-6, 7-8); 54 (, 1, 3); 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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8 to 9
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 24, 26 to 40, 42 to 47
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Portico
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Preserved
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2026-02-12
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Preserved : 1984/1985: 11(1-4), 1985: 12(1-4), 1985/1986: 13(1-6), 1986/1987: 14(1-8), 1987/1988: 15(1-6), 1988/1989: 16(1-6), 1989/1990: 17(1-6), 1990: 18(1-6), 1990/1991: 19(1-6), 1991/1992: 20(1-6), 1992/1993: 21(1-6), 1993/1994: 22(1-6), 1994/1995: 23(1-6), 1995/1996: 24(1-6), 1996/1997: 25(1-6), 1997: 26(1-6), 1998: 27(1-6), 1998/1999/2000: 28(1-8), 2000/2001: 29(1-8), 2001/2002: 30(1-8), 2002/2003: 31(1-8), 2003: 32(1-8), 2004: 33(1-8), 2005: 34(1-8), 2005/2006: 35(1-8), 2006/2007: 36(1, S 1, 2-8), 2007/2008: 37(1-8), 2008/2009: 38(1, S 1, 2-8), 2009/2010: 39(1-12), 2011: 40(1, S 1, 2-12), 2012: 41(1-8, 12), 2013: 42(1, S 1, 2-9, 11-12), 2014: 43(1-12), 2015: 44(1, 3-8), 2016: 45(1-8), 2017: 46(1, S 1, 2-8), 2018: 47(1-8), 2019: 48(1, S 1, 2-8), 2020: 49(1-8), 2021: 50(1, S 1, 2-8), 2022: 51(1-8), 2023: 52(1-2, S 1, 3-8), 2024: 53(1-6), 2025: 54(1, S 1, 3, 5-8)
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LOCKSS Archive
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In Progress
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2026-02-09
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41, 48
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Portico
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Preserved
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2026-02-12
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Preserved : 1974/1975: 1(1-4), 1976/1977: 2(1-4), 1977: 3(1-4), 1978: 4(1-4), 1979: 5(1-4), 1980: 6(1-4), 1980/1981: 7(1-4), 1981/1982: 8(1-4), 1982/1983: 9(1-4), 1983: 10(1-4)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 54
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Library of Congress
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Preserved
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2025-04-07
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47 (2 to 8); 48 (1, S1, 2 to 8); 49 (1 to 3-4, 5 to 8); 50 (1, S1, 2, 3-4, 5 to 8); 51 (1 to 4-5, 6, 7-8); 52 (S1, 1-2, 3, 4-5, 6-7, 8); 53 (1-2, 3 to 5-6)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 3 (1 to 8); 4 (1 to 9, 11, 12); 5 (Suppl 1, 1, 2, 3-4, 5 to 8); 25 (3 to 5); 26 (1 to 6); 27 (1 to 6); 28 (1 to 8); 29 (1 to 4, 6 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 4, 6 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1, 2, 4 to 9, 11); 43 (1, 2, 4, 6, 8, 12); 44 (1, 3 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (Suppl 1, 1 to 8); 49 (1, 2, 3-4, 5 to 8); 51 (1 to 3, 4-5, 6, 7-8); 52 (Suppl 1, 1-2, 3, 4-5, 6-7, 8); 53 (1, 3 to 5, 7)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 3 (1 to 8); 4 (1 to 9, 11, 12); 5 (Suppl 1, 1, 2, 3-4, 5 to 8); 25 (3 to 5); 26 (1 to 6); 27 (1 to 6); 28 (1 to 8); 29 (1 to 4, 6 to 8); 31 (1 to 8); 32 (1 to 8); 33 (1 to 8); 34 (1 to 8); 35 (1 to 8); 36 (1 to 4, 6 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 9, 11, 12); 41 (1 to 9, 11, 12); 42 (1, 2, 4 to 9, 11); 43 (1, 2, 4, 6, 8, 12); 44 (1, 3 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (Suppl 1, 1 to 8); 49 (1, 2, 3-4, 5 to 8); 51 (1 to 3, 4-5, 6, 7-8); 52 (Suppl 1, 1-2, 3, 4-5, 6-7, 8); 53 (1, 3 to 5, 7)
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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 : 25 (1-4, 5-6); 26 (2-6); 27 (1-6); 28 (1-8); 29 (1-3, 6-8); 30 (1-8); 31 (1-8); 32 (1-8); 33 (1-8); 34 (1-8); 35 (1-8); 36 (1-3, 4-5, 6-8); 37 (1-8); 38 (1-8); 39 (1-12); 40 (supplement-1, 1-12); 41 (1-12); 42 (1, 2-3, 4-10, 11-12); 43 (1, 2-3, 4-5, 6-7, 8-9, 10-11, 12); 44 (supplement-1, 1-2, 3-8); 45 (1-8); 46 (supplement-1, 1-8); 47 (1-8); 48 (1-3, 5-8)
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