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Internet Archive
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Preserved
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2025-08-08
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15 to 22
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 13 (1 to 10); 14 (, 1 to 10); 15 (, 1 to 10); 16 (, 1 to 10); 17 (, 1 to 12, 13-14, 15); 18 (, 1 to 11, 12-13, 14-15); 19 (, 1, 2-3, 4-5, 6-7, 8-9, 10, 11-12, 13-15); 20 (, 1, 2-3, 4, 5-6, 7-8, 9-10); 21 (, 1 to 5, 6-7, 8 to 10); 22 (, 1, 2-3, 4 to 7, 8-10, 11, 12); 23 (, 1-3, 4-5, 6-7, 8-9, 10-11, 12-13, 14-15); 24 (, 1-2, 3-4, 5-6, 7-8, 9-10, 11, 12-13, 14, 15); 25 (, 1-2, 3 to 6, 7-8, 9-10, 11-12, 13-15); 26 (, 1 to 9, 10-11, 12); 27 (, 1 to 7, 8-9, 10 to 15); 28 (, 1-3, 4 to 10, 11-12, 13-14, 15-16, 17-18); 29 (, 1 to 18); 30 (, 1 to 6, 7-9, 10 to 20); 31 (, 1 to 20); 32 (, 1-4, 5 to 18); 33 (, 1 to 16); 34 (, 1 to 5, 6-7, 8 to 16); 35 (, 1 to 16); 36 (, 1 to 4, 5-6, 7, 8-9, 10 to 16); 37 (, 1 to 16); 38 (, 1 to 11, 12-13, 14 to 16); 39 (, 1 to 16); 40 (, 1-3, 4 to 16); 41 (, 1, 3 to 16); 42 (, 1 to 16); 43 (, 1 to 8, 9-10, 11-12, 13 to 16); 44 (, 1 to 16); 45 (, 1 to 11, 12-13, 14 to 16); 46 (, 1 to 16); 47 (, 1 to 13, 14-15, 16); 48 (, 1 to 18); 49 (, 1 to 18); 50 (, 1 to 12, 14 to 18); 51 (, 1 to 14, 15-16, 17, 18); 52 (, 1 to 18); 53 (, 1, 5 to 18); 54 (, 1 to 18); 55 (, 1 to 18); 56 (, 1 to 18); 57 (, 1 to 18); 58 (, 1 to 14, 15-16, 17-18); 59 (, 1 to 5, 6-9, 10-14, 15, 16, 17-18); 60 (, 1, 2, 3-5, 6 to 8, 9-10, 11 to 13); 1978; 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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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 14(1-10), 1980: 15(1-10), 1981: 16(1-10), 1982: 17(1-15), 1983: 18(1-13), 1984: 19(1-3, 10), 1985: 20(1, 4-8), 1986: 21(1-10), 1987: 22(1-7, 11-12), 1988: 23(12-13), 1989: 24(11, 14-15), 1990: 25(3-6), 1991: 26(1-9, 12), 1992: 27(1-15), 1993: 28(4-12), 1994: 29(1-18), 1995: 30(1-6, 10-18), 1996: 31(1-18), 1997: 32(1-18), 1998: 33(1-16), 1999: 34(1-16), 2000: 35(1-16), 2001: 36(1-4, 7, 10-16), 2002: 37(1-16), 2003: 38(1-16), 2004/2005: 39(1-16), 2005: 40(1-16), 2006: 41(1-16), 2007: 42(1-16), 2008: 43(1-16), 2009: 44(1-16), 2010: 45(1-16), 2011: 46(1-16), 2012: 47(1-16), 2012/2013: 48(1-18), 2014: 49(1-18), 2015: 50(1-18), 2016: 51(1-18), 2017: 52(1-18), 2018: 53(1-18), 2019: 54(1-18), 2020: 55(1-18), 2021: 56(1-18), 2022: 57(1-18), 2023: 58(1-18), 2024: 59(1-18), 2025: 60(1-18), 2026: 61(1-5)
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LOCKSS Archive
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Preserved
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2026-02-09
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13 to 59
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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, 13 to 61
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LOCKSS Archive
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In Progress
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2026-02-09
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60
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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 : 4 (1-3, 4 to 9, 11 to 16); 5 (1 to 9, 11 to 18); 6 (1, 2, 3-5, 6, 8); 32 (1-4, 5 to 9, 11 to 18); 33 (1 to 9, 11 to 16); 34 (1 to 5, 6-7, 8, 9, 11 to 16); 35 (1 to 9, 11 to 16); 36 (1 to 4, 5-6, 7, 8-9, 11 to 16); 37 (1 to 9, 11 to 16); 38 (1 to 9, 11, 12-13, 14 to 16); 39 (1 to 9, 11 to 16); 41 (1, 3 to 9, 11 to 16); 42 (1 to 9, 11 to 16); 43 (1 to 8, 9-1, 11-12, 13 to 16); 44 (1 to 9, 11 to 16); 45 (1 to 9, 11, 12-13, 14 to 16); 46 (1 to 9, 11 to 16); 47 (1 to 9, 11 to 13, 14-15, 16); 48 (1 to 9, 11 to 18); 49 (1 to 9, 11 to 18); 51 (1 to 9, 11 to 14, 15-16, 17, 18); 52 (1 to 9, 11 to 18); 53 (1 to 9, 11 to 18); 54 (1 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 9, 11 to 14, 15-16, 17-18); 59 (1 to 5, 6-9, 15, 16, 17-18)
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Library of Congress
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Preserved
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2025-04-07
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45 (2 to 12-13, 14 to 16); 46 (1 to 16); 47 (1 to 14-15, 16); 48 (1 to 18); 49 (1 to 18); 50 (1 to 18); 51 (1 to 15-16, 17, 18); 52 (1 to 18); 53 (1 to 18); 54 (1 to 9, 11 to 18); 55 (1 to 18); 56 (1 to 18); 57 (1 to 18); 58 (1 to 15-16, 17-18); 59 (1 to 6-9, 10-14, 15 to 17-18)
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