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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 (, 2, 3); 3 (, 4, 5); 4 (, 6); 5 (, 7, 8); 6 (, 9, 10); 7 (, 11, 12); 8 (, 13, 14); 9 (, 15, 16); 10 (, 17, 18); 11 (, 19, 20); 12 (, 21, 22); 13 (, 23, 24); 14 (, 25, 26); 15 (, 27, 28); 16 (, 29, 30); 17 (, 31); 18 (, 32); 19 (, 33); 20 (, 34); 21 (, 35, 36); 22 (, 37, 38); 23 (, 39, 40); 24 (, 41, 42); 25 (, 43); 26 (, 44 to 46); 27 (, 47, 48); 28 (, 49, 50); 29 (, 51, 52); 30 (, 53, 54); 31 (, 55, 56); 32 (, 57, 58); 33 (, 59, 60); 34 (, 61, 62); 35 (, 63, 64); 36 (, 65, 66); 37 (, 67, 68); 38 (, 69, 70); 39 (, 71, 72); 40 (, 73, 74); 41 (, 75, 76); 42 (, 77, 78); 43 (, 79, 80); 44 (, 1 to 3); 45 (, 1 to 3); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 1 to 4); 52 (, 1 to 4); 53 (, 2 to 4); 54 (, 1, 2); 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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Portico
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Preserved
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2026-02-12
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Preserved : 2010: 39(72), 2015: 44(1-3), 2016: 45(1-3), 2017: 46(1-4), 2018: 47(1-4), 2019: 48(1-4), 2020: 49(1-4), 2021: 50(1-4), 2022: 51(1-4), 2023: 52(1-4), 2024: 53(1-4), 2025: 54(1-4), 1996: 1996(43), 1997: 1997(45-46), 1998: 1998(47), 1999: 1999(48-50), 2000: 2000(51-52), 2001: 2001(53-54), 2002: 2002(55-56), 2003: 2003(57-58), 2004: 2004(59-60), 2005: 2005(61-62), 2006: 2006(63-64), 2007: 2007(65-66), 2008: 2008(67-68), 2009: 2009(69-70), 2010: 2010(71-72), 2011: 2011(73-74), 2012: 2012(75-76), 2013: 2013(77-78), 2014: 2014(79-80)
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 53
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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 54
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LOCKSS Archive
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In Progress
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2026-02-09
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54
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Portico
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Preserved
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2026-02-12
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Preserved : 2016: 45(1-3), 2017: 46(1-4), 2018: 47(1-4), 2019: 48(1-4), 2020: 49(1-4), 2021: 50(1-4), 2022: 51(1-4), 2023: 52(1-4), 2024: 53(1-4), 2025: 54(1-4)
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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 : 3 (53, 54); 4 (73, 74); 5 (1 to 4); 26 (44 to 46); 27 (47, 48); 28 (5, 49); 29 (51, 52); 31 (55, 56); 32 (57, 58); 33 (6, 59); 34 (61, 62); 35 (63, 64); 36 (65, 66); 37 (67, 68); 38 (7, 69); 39 (71, 72); 41 (75, 76); 42 (77, 78); 43 (8, 79); 44 (1 to 3); 45 (sup1, 1 to 3); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 3); 53 (1 to 4); 54 (1)
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Library of Congress
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Preserved
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2025-04-07
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39 (71, 72); 40 (73, 74); 41 (75, 76); 42 (77, 78); 43 (79, 80); 44 (1 to 3); 45 (sup1, 1 to 3); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4)
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