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