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Internet Archive
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Preserved
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2025-08-08
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8 to 40
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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 10, 13 to 15); 2 (, 1 to 12); 3 (, 1 to 12); 4 (, 1 to 12); 5 (, 1 to 12); 6 (, 1 to 12); 7 (, 1 to 7, 8-9, 10 to 12); 8 (, 1 to 12); 9 (, 1 to 12); 10 (, 1 to 6, 7-8, 9 to 15); 11 (, 1 to 12); 12 (, 1 to 3, 5 to 15); 15 (, 1); 17 (, 9); 18 (, 1 to 20); 19 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14, 15-16, 17-18, 19-20, 21-22, 23-24); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 10, 11-12, 13-14, 15); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 15); 28 (, 1 to 15); 29 (, 1 to 15); 30 (, 1 to 15); 31 (, 1 to 15); 32 (, 1 to 15); 33 (, 1 to 15); 34 (, 1 to 15); 35 (, 1 to 15); 36 (, 1 to 15); 37 (, 1 to 15); 38 (, 1 to 15); 39 (, 1 to 15); 40 (, 1 to 18); 41 (, 1 to 18); 42 (, 1 to 18); 43 (, 1 to 6, 7-8, 9, 10-11, 12 to 18); 44 (, 1-3, 4 to 18); 45 (, 1, 2-3, 4, 13 to 18); 46 (, 1 to 18); 47 (, 1 to 18); 48 (, 1 to 15); 49 (, 1 to 5, 8 to 18); 50 (, 1 to 18); 51 (, 1-2, 4 to 18); 52 (, 1 to 18); 53 (, 1 to 18); 54 (, 1-2, 3 to 18); 55 (, 1 to 18); 56 (, 1 to 18); 57 (, 1 to 18); 58 (, 1 to 16); 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1982; 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
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2026-02-09
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1 to 57
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print, just-accepted to 58
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LOCKSS Archive
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In Progress
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2026-02-09
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58
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Portico
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Preserved
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2026-02-12
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Preserved : 1970: 3(1-9), 1971: 4(1-9), 1972: 5(1-9)
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 6(1-9), 1974: 7(1-12), 1975: 8(1-12), 1976: 9(1-12), 1977: 10(1-12), 1978: 11(1-12), 1979: 12(1-3, 5-12), 1980: 13(1-9)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 14(1-9), 1982: 15(1-9), 1983: 16(1-9), 1984: 17(1-9)
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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 18(1-9), 1986: 19(1-10), 1987: 20(1-9), 1988: 21(1-12), 1989: 22(1-10, 15), 1990: 23(1-12), 1991: 24(1-12), 1992: 25(1-12), 1993: 26(1-12), 1994: 27(1-15), 1995: 28(1-15), 1996: 29(1-15), 1997: 30(1-15), 1998: 31(1-15), 1999: 32(1-15), 2000: 33(1-15), 2001: 34(1-15), 2002: 35(1-15), 2003: 36(1-15), 2004: 37(1-15), 2005: 38(1-15), 2006: 39(1-15), 2007: 40(1-18), 2008: 41(1-18), 2009: 42(1-18), 2009/2010: 43(1-18), 2011: 44(1-18), 2012: 45(1-18), 2013: 46(1-18), 2014: 47(1-18), 2015: 48(1-18), 2016: 49(1-18), 2017: 50(1-18), 2018: 51(1-18), 2019: 52(1-18), 2020: 53(1-18), 2020/2021: 54(1-18), 2022: 55(1-18), 2022/2023: 56(1-18), 2024: 57(1-18), 2025: 58(1-7, 9-18), 2026: 59(1-5)
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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 9, 11 to 15); 4 (1 to 9, 11 to 18); 5 (1 to 9, 11 to 18); 31 (1 to 9, 11 to 15); 32 (1 to 9, 11 to 15); 33 (1 to 9, 11 to 15); 34 (1 to 9, 11 to 15); 35 (1 to 9, 11 to 15); 36 (1 to 9, 11 to 15); 37 (1 to 9, 11 to 15); 38 (1 to 9, 11 to 15); 39 (1 to 9, 11 to 15); 41 (1 to 9, 11 to 18); 42 (1 to 9, 11 to 18); 43 (1 to 6, 7-8, 9, 12 to 18); 44 (1-3, 4 to 9, 11 to 18); 45 (1, 2-3, 4, 5-6, 7 to 9, 11 to 18); 46 (1 to 9, 11 to 18); 47 (1 to 9, 11 to 18); 48 (1 to 9, 11 to 18); 49 (1 to 9, 11 to 18); 51 (1-2, 3 to 9, 11 to 18); 52 (1 to 9, 11 to 18); 53 (1 to 9, 11 to 18); 54 (1, 3 to 9, 11 to 18); 55 (1 to 9, 11 to 18); 56 (1 to 9, 11 to 18); 57 (1 to 9, 11 to 18); 58 (1 to 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 : 1 (1-10, 13-15); 2 (1-12); 3 (1-12); 4 (1-12); 5 (1-12); 6 (1-12); 7 (1-7, 8-9, 10-12); 8 (1-12); 9 (1-12); 10 (1-6, 7-8, 9-15); 11 (1-12); 12 (1-3, 5-15); 13 (1-14, 18); 14 (1-16, 17-18, 19, 20); 15 (1-14, 16-20, 21-22); 16 (1-16, 17-18, 19, 20); 17 (1-20); 18 (1-20); 19 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14, 15-16, 17-18, 19-20, 21-22, 23-24); 20 (1-12); 21 (1-12); 22 (1-10, 11-12, 13-14, 15); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-12); 27 (1-15); 28 (1-15); 29 (1-11, 14, 15); 30 (1-15); 31 (1-15); 32 (1-15); 33 (1-14); 34 (1, 3, 7, 9, 11); 35 (7, 11, 12, 14); 36 (1-10, 12, 15); 38 (8); 39 (1-15); 40 (1-18); 41 (1-18)
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Library of Congress
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Preserved
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2025-04-07
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43 (2 to 7-8, 9, 10-11, 12 to 18); 44 (1-3, 4 to 18); 45 (1, 2-3, 4, 5-6, 7 to 18); 46 (1 to 18); 47 (1 to 18); 48 (1 to 18); 49 (1 to 18); 50 (1 to 18); 51 (1-2, 3 to 18); 52 (1 to 18); 53 (1 to 18); 54 (1-2, 3 to 18); 55 (1 to 18); 56 (1 to 18); 57 (1 to 18)
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