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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 63
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 37, 63
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LOCKSS Archive
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Preserved
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2026-02-09
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38 to 62
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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 6); 4 (, 1 to 6); 7 (, 1 to 6); 8 (, 1-2, 3 to 6); 9 (, 1 to 6); 10 (, 1 to 6); 11 (, 1 to 6); 12 (, 1 to 6); 13 (, 1 to 4, 6); 14 (, 1 to 6); 15 (, 1 to 6); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1 to 6); 23 (, 1, 2-3, 4 to 6); 24 (, 1 to 6); 25 (, 1 to 3, 4-6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 8); 30 (, 1 to 8); 31 (, 1 to 8); 32 (, 1 to 6, 7-8); 33 (, 1 to 8); 34 (, 1 to 8); 35 (, 1 to 8); 36 (, 1 to 8); 37 (, 1 to 6, 7-8, 11); 38 (, 1 to 8, 12 to 14); 39 (, 1 to 8); 40 (, 1, 2-3, 4 to 8); 41 (, 1 to 6, 7-8); 42 (, 1 to 4, 5-6, 7, 8); 43 (, 1 to 8); 44 (, 1 to 8); 45 (, 1 to 8); 46 (, 1 to 8); 47 (, 1 to 8); 48 (, 1 to 8); 49 (, 1 to 8); 50 (, 1 to 8); 51 (, 1 to 8); 52 (, 1 to 8); 53 (, 1 to 10); 54 (, 1 to 10); 55 (, 1 to 8, 9-10, 11, 12); 56 (, 1 to 12); 57 (, 1 to 3, 8, 9); 58 (, 1 to 12); 59 (, 1 to 11); 60 (, 1 to 12); 61 (, 1 to 12); 62 (, 1 to 12); 1963; 1964; 1965; 1966; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 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
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Internet Archive
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Preserved
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2025-08-08
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9 to 46
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Portico
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Preserved
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2026-02-12
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Preserved : 1964: 2(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 27(4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 28(5), 1990: 29(6), 1991: 30(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 1993: 32(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 34(4), 1996: 35(7)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 36(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 39(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 40(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 2003: 42(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 44(8)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 47(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 2009/2010: 49(1-8), 2011: 50(1, S 1, 2-8), 2012: 51(1, 3-8), 2013: 52(2-8), 2014: 53(1-10), 2015: 54(1-8)
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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, 26 to 62
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LOCKSS Archive
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Preserved
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2026-02-09
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26 to 62
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 36(1-sup10), 1998: 37(1-6), 1999: 38(1-8), 2000: 39(1-8), 2001: 40(1, 4-8), 2002: 41(1-8), 2003: 42(1-4, 7-8), 2004: 43(1-8), 2005: 44(1-8), 2006: 45(1-8), 2007: 46(1-8), 2007/2008: 47(1-8), 2009: 48(1-8), 2010: 49(1-8), 2011: 50(1-8), 2012: 51(1-8), 2013: 52(1-8), 2014: 53(1-10), 2015: 54(1-10), 2016: 55(1-12), 2017: 56(1-12), 2018: 57(1-12), 2019: 58(1-12), 2020: 59(1-12), 2021: 60(1-12), 2022: 61(1-12), 2023: 62(1-12)
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Public Knowledge Project PLN
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Preserved
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2026-02-12
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Preserved : 1 (1, 2, 6); 2 (1, 2, 4); 3 (1 to 6); 4 (2, 3, 6); 7 (2 to 6); 8 (1-2, 4 to 6); 9 (1 to 3, 5); 10 (1 to 3); 11 (1); 12 (3, 5, 6); 13 (1 to 4, 6); 14 (1, 2, 4, 5); 15 (1 to 6); 16 (1, 4 to 6); 17 (1 to 6); 18 (1 to 6); 19 (2 to 6); 20 (1, 2, 4); 21 (5, 6); 22 (1 to 6); 23 (1, 2-3, 4); 24 (3, 5, 6); 25 (1 to 3); 26 (1 to 6); 27 (Supp 1, 1 to 6); 28 (1 to 6); 29 (1 to 8); 30 (Supp 1, 1, 3, 5 to 8); 31 (1, 3 to 8); 32 (1, 4, 5); 33 (2, 5, 6, 8); 34 (1, 2, 4, 7); 35 (Supp 6, 3, 5 to 7); 36 (Supp 10, 1 to 6); 37 (7-8, 11); 38 (2, 3, 5 to 14); 39 (1 to 8); 40 (2-3, 4 to 8); 41 (1 to 3, 5, 6, 7-8); 42 (1, 2, 4, 5-6, 7, 8); 43 (1, 2, 5 to 8); 44 (1 to 8); 45 (1, 3, 4, 6 to 8); 46 (1 to 5); 47 (1 to 4, 6, 8); 48 (1, 2, 4 to 7); 49 (1 to 8); 50 (sup 1, 1, 3 to 8); 51 (4 to 8); 55 (12); 56 (1 to 12); 57 (1 to 12); 58 (Supp 1, 1 to 12); 59 (1 to 12); 60 (1 to 12); 61 (1 to 12); 62 (1 to 7, 9, 11); 63; 64
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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 (2-3, 4 to 8); 5 (sup1, 1 to 8); 6 (1 to 9, 11, 12); 36 (sup9, 1 to 8); 37 (1 to 6, 7-8, 11); 38 (1 to 8, 12 to 14); 39 (1 to 8); 41 (1 to 6, 7-8); 42 (1 to 4, 5-6, 7, 8); 43 (1 to 8); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 9); 54 (1 to 9); 55 (sup1, 1 to 8, 9-1, 11, 12); 56 (1 to 9, 11, 12); 57 (1 to 9, 11, 12); 58 (sup1, 1 to 9, 11, 12); 59 (1 to 9, 11, 12); 61 (1 to 9, 11, 12); 62 (1 to 9, 11)
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