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