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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 4); 3 (, 1-2, 3-4); 4 (, 3-4); 7 (, 1-2, 3-4); 8 (, 1-2, 3-4); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1-2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1, 2); 17 (, 1-2); 18 (, 1, 2); 19 (, 1, 2); 20 (, 1-2); 21 (, 1-2); 22 (, 1-2); 23 (, 1-2); 24 (, 1-2); 25 (, 1-2); 26 (, 1, 2); 27 (, 1-2); 28 (, 1-2); 29 (, 1-2, 3-4); 30 (, 1-2, 3-4); 31 (, 1-2, 3-4); 32 (, 1 to 4); 33 (, 1, 2, 3-4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1, 3, 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1, 2-3, 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 3); 1977; 1978; 1979; 1980; 1981; 1982; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1993; 1994; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 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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27 to 29
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 27(1-2), 2006: 28(1-2), 2007: 29(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 45
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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 46
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LOCKSS Archive
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In Progress
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2026-02-09
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46
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Portico
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Preserved
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2026-02-12
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Preserved : 1979: 2(1-4), 1980/1981: 3(1-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1982: 4(3-4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1986: 8(1-2), 1987: 9(1-2), 1988: 10(1-2), 1989: 11(1-2), 1990: 13(1-2), 1990: 14(1-2), 1990/1991: 15(1-2), 1993: 16(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 18(1-2), 1998/1999: 19(1-2), 1999: 20(1-2), 2000: 21(1-2), 2001: 22(1-2), 2003: 23(1-2), 2002: 24(1-2), 2004: 25(1-2), 2004/2005: 26(1-2), 2006: 27(1-2), 2006: 28(1-2), 2007/2008: 29(1-4), 2008: 30(1-4), 2009: 31(1-4), 2011: 32(1-4), 2012: 33(1-4), 2013: 34(1-4), 2014: 35(1-4), 2015: 36(1-4), 2016: 37(1-4), 2017: 38(1-4), 2018: 39(1-4), 2019: 40(1-4), 2020: 41(1-4), 2021: 42(1-4), 2022: 43(1-4), 2023: 44(1-4), 2024: 45(1-4), 2025: 46(1-4), 2026: 47(1)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-6); 2 (1-4); 3 (1-2, 3-4); 4 (1-2, 3-4); 5 (1-2, 3-4); 6 (1-2, 3-4); 7 (1-2, 3-4); 8 (1-2, 3-4); 9 (1, 2); 10 (1, 2); 11 (1, 2); 12 (1-2); 13 (2); 14 (1, 2); 15 (1, 2); 16 (1, 2); 17 (1-2); 18 (2); 19 (1, 2); 20 (1-2); 21; 22; 23; 24; 25; 26 (2); 27 (1-2); 28; 29 (3-4); 30 (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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38 (2 to 4); 39 (1, 2-3, 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)
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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 : 2 (1-2); 3 (3-4); 4 (1 to 4); 18 (1, 2); 19 (1, 2); 21 (1-2); 22; 23; 24; 25; 26 (2); 27 (1-2); 28; 29 (3-4); 31 (1-2, 3-4); 32 (1 to 4); 33 (1, 2, 3-4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1, 2-3, 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1, 2)
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