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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 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 6); 21 (, 1 to 6); 22 (, 1, 2, 3-4, 5-6); 23 (, 1 to 4); 24 (, 1 to 4); 25 (, 1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 6); 29 (, 1 to 6); 30 (, 1 to 6); 31 (, 1 to 3, 4-5, 6); 32 (, 1 to 6); 33 (, 1, 2, 3-4, 5, 6); 34 (, 1 to 6); 35 (, 1, 2-3, 4 to 7, 8-9, 10); 36 (, 1 to 5, 6-7, 8 to 10); 37 (, 1-2, 3 to 10); 38 (, 1 to 10); 39 (, 1 to 10); 40 (, 1 to 10); 41 (, 1 to 10); 42 (, 1 to 10); 43 (, 1 to 10); 44 (, 1 to 10); 45 (, 1 to 10); 46 (, 1 to 10); 47 (, 1 to 10); 48 (, 1 to 10); 49 (, 1 to 10); 50 (, 1 to 10); 51 (, 1 to 10); 52 (, 1 to 10); 53 (, 1 to 10); 54 (, 1, 3 to 10); 55 (, 1 to 5); 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; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 26
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 2(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1975/1976: 4(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 27(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2001: 31(2-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 34(1, 3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 38(9)
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Portico
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Preserved
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2026-02-12
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Preserved : 2009: 39(S 2, S 3, 8-10), 2010: 40(1, S 1, 2, S 2, 3, S 3, 4-10), 2011: 41(1, S 1, 2, S 2, 3-10), 2012: 42(1, 3-10), 2011/2013: 43(1, S 1, 2, S 2, 3-10), 2013/2014: 44(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6-10), 2015: 45(1-7)
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LOCKSS Archive
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Preserved
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2026-02-09
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20 to 54
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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 55
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LOCKSS Archive
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In Progress
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2026-02-09
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55
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 27(1-6), 1998: 28(1-6), 1999: 29(1-6), 2000: 30(1-6), 2001/2002: 31(1-6), 2002: 32(1-6), 2003: 33(1-6), 2004: 34(1-6), 2005: 35(1-10), 2006: 36(1-10), 2007: 37(1-10), 2008: 38(1-10), 2008: 38 Suppl 1, 2008: 38 Suppl 2, 2009: 39(1-3), 2009: 39 Suppl 1, 2010: 40(1-10), 2011: 41(1-10), 2012: 42(1-10), 2013: 43(1-10), 2014: 44(1-10), 2015: 45(1-10), 2016: 46(1-10), 2017: 47(1-10), 2018: 48(1-10), 2019: 49(1-10), 2020: 50(1-10), 2021: 51(1-10), 2022: 52(1-10), 2023: 53(1-10), 2024: 54(1-5, 7-10), 2025: 55(1-9)
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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 6); 4 (sup1, 1 to 9); 5 (1 to 9); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 31 (1 to 3, 4-5, 6); 32 (1 to 6); 33 (1, 2, 3-4, 5, 6); 34 (1 to 6); 35 (1, 2-3, 4 to 7, 8-9); 36 (1 to 5, 6-7, 8, 9); 37 (1-2, 3 to 9); 38 (sup1, 1 to 9); 39 (sup1, 1 to 9); 41 (sup1, 1 to 9); 42 (1 to 9); 43 (sup1, 1 to 9); 44 (sup1, 1 to 9); 45 (sup1, 1 to 9); 46 (sup1, 1 to 9); 47 (1 to 9); 48 (1 to 9); 49 (1 to 9); 51 (1 to 9); 52 (1 to 9); 53 (1 to 7, 9); 54 (1 to 9); 55 (2)
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