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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); 2 (, 1); 3 (, 1); 4 (, 1); 5 (, 1); 6 (, 1); 12 (, 1); 13 (, 1); 14 (, 1); 15 (, 1); 16 (, 1); 17 (, 1); 18 (, 1); 19 (, 1); 20 (, 1); 22 (, 1); 23 (, 1); 24 (, 1); 25 (, 1); 27 (, 1); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 2); 32 (, 1, 2); 33 (, 1, 2); 34 (, 1, 2); 35 (, 1, 2); 36 (, 1, 2); 37 (, 1, 2); 38 (, 1, 2); 39 (, 2); 40 (, 1, 2); 41 (, 1 to 3); 42 (, 1 to 3); 43 (, 1 to 3); 44 (, 1 to 3); 45 (, 1 to 3); 46 (, 1 to 3); 47 (, 1 to 3); 48 (, 1 to 3); 49 (, 1 to 3); 50 (, 1, 2); 51 (, 1 to 3); 52 (, 1); 1974; 1975; 1976; 1977; 1978; 1979; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1995; 1996; 1997; 1998; 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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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 20, 22 to 51
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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 20, 22 to 42, 44 to 52
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LOCKSS Archive
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In Progress
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2026-02-09
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52
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Portico
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Preserved
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2026-02-12
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Preserved : 1974: 1(1), 1975: 2(1), 1976: 3(1), 1977: 4(1), 1978: 5(1), 1979: 6(1), 1980: 7(1), 1981: 8(1), 1982: 9(1), 1983: 10(1), 1984: 11(1), 1985: 12(1), 1986: 13(1), 1987: 14(1), 1988: 15(1), 1989: 16(1), 1990: 17(1), 1991: 18(1), 1992: 19(1), 1993: 20(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1995: 22(1), 1996: 23(1), 1997: 24(1), 1998: 25(1), 1999: 26(1), 2000: 27(1), 2001: 28(1-2), 2002: 29(1-2), 2003: 30(1-2), 2004: 31(1-2), 2005: 32(1-2), 2006: 33(1-2), 2007: 34(1-2), 2008: 35(1-2), 2009: 36(1-2), 2010: 37(1-2), 2011: 38(1-2), 2012: 39(1-2), 2013: 40(1-2), 2014: 41(1-3), 2015: 42(1-3), 2016: 43(1-3), 2017: 44(1-3), 2018: 45(1-3), 2019: 46(1-3), 2020: 47(1-3), 2021: 48(1-3), 2022: 49(1-3), 2023: 50(1-3), 2024: 51(1-3), 2025: 52(1-3)
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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, 2); 4 (1, 2); 5 (1 to 3); 24 (1); 25; 26; 27; 28 (2); 29 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 51 (1 to 3); 52 (1)
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Library of Congress
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Preserved
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2025-04-07
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37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 3); 46 (1 to 3); 47 (1 to 3); 48 (1 to 3); 49 (1 to 3); 50 (1 to 3); 51 (1 to 3)
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