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Internet Archive
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Preserved
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2025-08-08
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1 to 35
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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 6); 2 (, 1 to 6); 3 (, 1 to 12); 4 (, 1 to 12); 5 (, 1 to 14); 6 (, 1 to 18); 7 (, 1 to 18); 9 (, 2, 15, 18); 11 (, 3, 12); 12 (, 22); 13 (, 1 to 12); 14 (, 1 to 10); 15 (, 1-2, 3 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 15); 23 (, 1 to 14); 24 (, 1 to 14); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1 to 12); 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 3, 8 to 12); 41 (, 1 to 12); 42 (, 1 to 12); 43 (, 1 to 12); 44 (, 1, 2, 5 to 12); 45 (, 1 to 12); 46 (, 2 to 12); 47 (, 1 to 12); 48 (, 1 to 12); 49 (, 1 to 12); 50 (, 1 to 12); 51 (, 1 to 12); 52 (, 1 to 3, 6 to 12); 53 (, 1 to 10); 1974; 1975; 1976; 1977; 1978; 1979; 1981; 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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LOCKSS Archive
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Preserved
|
2026-02-09
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1 to 52
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CLOCKSS Archive
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Preserved
|
2026-02-09
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1 to 54
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LOCKSS Archive
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In Progress
|
2026-02-09
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53
|
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Portico
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Preserved
|
2026-02-12
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Preserved : 1975: 3(7)
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Portico
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Preserved
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2026-02-12
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Preserved : 1977: 5(1-14), 1978: 6(1-18), 1979: 7(1-18), 1980: 8(1-18), 1981: 9(1-18), 1982: 10(1-12), 1983: 11(1-12), 1984: 12(3-16, 19-22), 1985: 13(1-12), 1986: 14(1-10), 1987: 15(1-12), 1988/1998: 16(1-12), 1989: 17(1-12), 1990: 18(1-12), 1991: 19(1-12), 1992: 20(1-12), 1993: 21(1-12), 1994: 22(1-12), 1995: 23(1-12), 1996: 24(1-12), 1997: 25(1-12), 1998: 26(1-12), 1999: 27(1-12), 2000: 28(1-12), 2001: 29(1-12), 2002: 30(1-12), 2003: 31(1-12), 2004: 32(1-12), 2005: 33(1-12), 2006: 34(1-12), 2007: 35(1-12), 2008: 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(1-12), 2018: 46(1-12), 2019: 47(1-12), 2020: 48(1-12), 2021: 49(1-12), 2022: 50(1-12), 2023: 51(1-12), 2024: 52(1-12), 2025: 53(1-12), 2026: 54(1-4)
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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 9, 11, 12); 4 (1 to 9, 11, 12); 5 (1 to 9, 11, 12); 25 (1 to 9, 11, 12); 26 (1 to 9, 11, 12); 27 (1 to 9, 11, 12); 28 (1 to 9, 11, 12); 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 9, 11, 12); 42 (1 to 9, 11, 12); 43 (1 to 9, 11, 12); 44 (1 to 9, 11, 12); 45 (1 to 9, 11, 12); 46 (1 to 9, 11, 12); 47 (1 to 9, 11, 12); 48 (1 to 9, 11, 12); 49 (1 to 9, 11, 12); 51 (1 to 9, 11, 12); 52 (1 to 9, 11, 12); 53 (1 to 5, 7)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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Preserved : 1 (1, 2, 4-6); 2 (1-6); 3 (1-12); 4 (1-11); 5 (1-4, 6-14); 6 (1-18); 7 (1-18); 8 (1-20); 9 (1-20); 10 (1-12, 14-20); 11 (1-22); 12 (1-2, 3-16, 17-18, 19-24); 13 (1-12); 14 (1-10); 15 (1-2, 3-12); 16 (1, 4-12); 17 (1-12); 18 (1-12); 19 (1-12); 20 (1-12); 21 (1-12); 22 (1-4, 6-15); 23 (1-14); 24 (1-14); 25 (1-12); 26 (1-12); 27 (1-12); 28 (1-12); 29 (1, 5, 7, 9, 11); 30 (3); 31 (12); 32 (5); 33 (3, 4, 8, 10); 34 (2-12); 35 (1-12); 36 (1-12)
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Library of Congress
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Preserved
|
2025-04-07
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38 (2 to 12); 39 (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 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12)
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