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