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Internet Archive
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Preserved
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2025-08-08
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1 to 9
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 11 (1-2, 3, 4); 12 (, 1 to 4); 13 (, 1, 2, 3-4); 14 (, 1, 2-3, 4); 20 (, 1 to 4); 21 (, 1-2, 3, 4); 22 (, 1 to 4); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 27 (, 1, 2-3, 4); 28 (, 1 to 4); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1, 2, 3-4); 32 (, 1 to 4); 33 (, 1, 2); 34 (, 1 to 3); 35 (, 1 to 3); 36 (, 1 to 3); 37 (, 1 to 3); 38 (, 1 to 3); 39 (, 1 to 3); 40 (, 1 to 3); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1 to 3); 46 (, 1 to 3); 47 (, 1, 3); 48 (, 1 to 3); 49 (, 1 to 3); 50 (, 1, 3); 51 (, 1 to 3); 52 (, 1 to 3); 53 (, 1 to 3); 54 (, 1 to 3); 55 (, 1 to 3); 56 (, 1 to 3); 57 (, 1 to 3); 58 (, 1 to 3); 59 (, 2, 3); 60 (, 1, 2); 1976; 1977; 1978; 1979; 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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11 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, 11 to 60
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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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Portico
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Preserved
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2026-02-12
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Preserved : 1985: 20(1-2), 1986: 21(3-4), 1987: 22(1-4), 1988: 23(1-4), 1989: 24(1-4), 1990: 25(1-4), 1991: 26(1-4), 1992: 27(1, 4), 1993: 28(1-4), 1994: 29(1-4), 1995: 30(1-4), 1996: 31(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 32(1-4), 1998: 33(1-2), 1999: 34(1-3), 2000: 35(1-3), 2001: 36(1-3), 2002: 37(1-3), 2003: 38(1-3), 2004: 39(1-3), 2005: 40(1-3), 2006: 41(1-3), 2007: 42(1-3), 2007/2008: 43(1-3), 2009: 44(1-3), 2010: 45(1-3), 2011: 46(1-3), 2012: 47(1-3), 2013: 48(1-3), 2014: 49(1-3), 2015: 50(1-3), 2016: 51(1-3), 2017: 52(1-3), 2018: 53(1-3), 2019: 54(1-3), 2020: 55(1-3), 2021: 56(1-3), 2022: 57(1-3), 2023: 58(1-3), 2024: 59(1-2), 2025: 60(1-3)
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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 to 3); 5 (1 to 3); 32 (1 to 4); 33 (1, 2); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1 to 3)
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Library of Congress
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Preserved
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2025-04-07
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45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 50 (1 to 3); 51 (1 to 3); 52 (1 to 3); 53 (1 to 3); 54 (1 to 3); 55 (1 to 3); 56 (1 to 3); 57 (1 to 3); 58 (1 to 3); 59 (1, 2)
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