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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); 20 (, 1); 24 (, 1, 2); 25 (, 1 to 3); 26 (, 1 to 3); 27 (, 1 to 3); 28 (, 1 to 3); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 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 (, 1 to 4); 50 (, 1 to 4); 51 (, 1, 3, 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 3); 55 (, 1-2, 3, 4); 56 (, 1 to 3); 57 (, 1, 2, 3-4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1, 2, 3-4); 63 (, 1-2, 3, 4); 64 (, 1); 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1981; 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 : 2002: 41(1-4), 2003: 42(1-4), 2004: 43(1-4), 2005: 44(1-4), 2006: 45(1-4), 2007: 46(1-4), 2008: 47(1-4), 2009: 48(1-4), 2010: 49(1-4), 2011: 50(1-4), 2012: 51(1-4), 2013: 52(1-4), 2014: 53(1-4), 2015: 54(1-4), 2016: 55(1-4), 2017: 56(1-4), 2018: 57(1-4), 2019: 58(1-4), 2020: 59(1-2), 2021: 60(1-4), 2022: 61(1-4), 2023: 62(1-4), 2024: 63(1-2, 4), 2025: 64(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1981: 20(1-3), 1982: 21(1-2), 1983: 22(1-2), 1984: 23(1-2), 1985: 24(1-2), 1986: 25(1-3), 1987: 26(1-3), 1988: 27(1-3), 1989: 28(1-3), 1990: 29(1-4), 1991: 30(1-4), 1992: 31(1-4), 1993: 32(1-4), 1994: 33(1-4), 1995: 34(1-4), 1996: 35(1-4), 1997: 36(1-4), 1998: 37(1-4), 1999: 38(1, S 1, sup1-4), 2000: 39(1-4), 2001: 40(1-4), 2002: 41(1-4), 2003: 42(1-4), 2004: 43(1-4), 2005: 44(1-4), 2006: 45(1-4), 2007: 46(1-4), 2008: 47(1-4), 2009: 48(1-4), 2010: 49(1-4), 2011: 50(1-4), 2012: 51(1-4), 2013: 52(1-4), 2014: 53(1-4), 2015: 54(1-4), 2016: 55(1-4), 2017: 56(1-4), 2018: 57(1-4), 2019: 58(1-4), 2020: 59(1-4), 2021: 60(1-4), 2022: 61(1-4), 2023: 62(1-4), 2024: 63(1-4), 2025: 64(1-4)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 63
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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 to 64
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LOCKSS Archive
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In Progress
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2026-02-09
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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 (1 to 4); 5 (1 to 4); 6 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (sup1, 1 to 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 (sup1, 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 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1, 2, 3-4); 63 (1-2, 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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49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (sup1, 1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1-2, 3, 4); 56 (1 to 4); 57 (1 to 3-4); 58 (1, 3, 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 3-4); 63 (1-2, 3)
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