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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 35 (1, 2); 36 (, 1, 2); 37 (, 1, 2); 38 (, 1, 2); 39 (, 1, 2); 40 (, 1, 2); 41 (, 1, 2); 42 (, 1, 2); 43 (, 1, 2); 44 (, 1, 2); 45 (, 1, 2); 46 (, 1, 2); 47 (, 1, 2); 48 (, 1, 2); 49 (, 1, 2, 8); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 1 to 4); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1, 2, 3-4); 59 (, 1, 2, 3-4); 60 (, 1-2); 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 : 2006: 41(1-2), 2007: 42(1-2), 2008: 43(1-2), 2009: 44(1-2), 2010: 45(1-2), 2011: 46(1-2), 2012: 47(1-2), 2013: 48(1-2), 2014: 49(1-2), 2015/2016: 50(1-4), 2016: 51(1-4), 2017: 52(1-4), 2018: 53(1-4), 2019: 54(1-4), 2020: 55(1-4), 2021: 56(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 2023: 57(3-4), 2023: 58(1-4), 2024/2025: 59(1-3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1965: 1(1-2), 1966: 2(1-2), 1967/1968: 3(1-2), 1969: 4(1-2), 1970: 5(1-2), 1971/1972: 6(1-2), 1972: 7(1-2), 1973: 8(1-2), 1974: 9(1-2), 1975: 10(1-2), 1976: 11(1-2), 1977: 12(1-2), 1978: 13(1-2), 1979: 14(1-4), 1980: 15(1-4), 1981: 16(1-4), 1982: 17(1-4), 1983: 18(1-4), 1984: 19(1-4), 1985: 20(1-4), 1986: 21(1-4), 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(1-4), 1997: 32(1-4), 1998: 33(1-4), 1999: 34(1-4), 2000: 35(1-2), 2001: 36(1-2), 2002: 37(1-2), 2003: 38(1-2), 2004: 39(1-2), 2005: 40(1-2), 2006: 41(1-2), 2007: 42(1-2), 2008: 43(1-2), 2009: 44(1-2), 2010: 45(2), 2011: 46(1-2), 2012: 47(1-2), 2013: 48(1-2), 2014: 49(1-2), 2015: 50(1-4), 2016: 51(1-4), 2017: 52(1-4), 2018: 53(1-4), 2019: 54(1-4), 2020: 55(1-3), 2021: 56(1-4), 2022: 57(1-4), 2023: 58(1-4), 2024: 59(1-4), 2025: 60(1-4), 1968: 1968(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1983: 1983(1)
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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, 35 to 59
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LOCKSS Archive
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Preserved
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2026-02-09
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35 to 59
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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 : 2010: 45(1-2), 2011: 46(1-2), 2012: 47(1-2), 2013: 48(1-2), 2014: 49(1-2), 2015: 50(1-4), 2016: 51(1-4), 2017: 52(1-4), 2018: 53(1-4), 2019: 54(1-4), 2020: 55(1-4), 2021: 56(1-4), 2022: 57(1-4), 2023: 58(1-4), 2024: 59(1-4), 2025: 60(1-4)
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LOCKSS Archive
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In Progress
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2026-02-09
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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, 2); 5 (1 to 4); 6 (1-2); 35 (2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1, 2, 3-4); 59 (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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45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 3-4); 59 (1 to 3-4)
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