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