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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 (, 1-2, 3, 4); 5 (, 1-2, 3-4); 6 (, 1-4); 7 (, 1-2, 3-4); 8 (, 1-2, 3-4); 9 (, 1 to 4); 10 (, 1, 2, 3-4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 6); 14 (, 1 to 5); 16 (, 8); 19 (, 1 to 12); 20 (, 3-4, 6); 21 (, 1 to 11); 22 (, 1 to 3, 4-5, 6 to 12); 23 (, 1 to 4, 9 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 10, 12); 27 (, 1 to 4, 6 to 12); 28 (, 1 to 11); 29 (, 2 to 12); 30 (, 1 to 12); 31 (, 1 to 12); 32 (, 1 to 4, 5-8, 9 to 12); 33 (, 1 to 12); 34 (, 1 to 12); 35 (, 1 to 3, 5-6, 7-8, 9 to 12); 36 (, 1 to 8); 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2005; 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 : 1993: 1(1-4), 1994: 2(1-4), 1995: 3(1-4), 1996: 4(3-4), 1997: 5(1-4), 1998: 6(1-4), 1998: 7(1-4), 1999: 8(1-4), 2000: 9(1-4), 2000: 10(1-4), 2001: 11(1-4), 2001: 12(1-4), 2002: 13(1-6), 2003: 14(1-6), 2004: 15(1-6), 2005: 16(1-8), 2006: 17(1-12), 2007: 18(1-12), 2008: 19(1-12), 2009: 20(1-12), 2010: 21(1-12), 2011: 22(1-12), 2012: 23(1-12), 2013: 24(1-12), 2014: 25(1-12), 2015: 26(1-12), 2016: 27(1-12), 2017: 28(1-12), 2018: 29(1-12), 2019: 30(1-12), 2020: 31(1-12), 2021: 32(1-12), 2022: 33(1-12), 2023: 34(1-12), 2024: 35(1-12), 2025: 36(1-12), 2026: 37(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 35
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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 37
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LOCKSS Archive
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In Progress
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2026-02-09
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36
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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 : 31 (5); 32 (1 to 4, 5-8, 9, 11, 12); 33 (1 to 9, 11, 12); 34 (1 to 9, 11, 12); 35 (1 to 4, 5-6, 9, 11, 12); 36 (1 to 3, 5)
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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 (1-4); 2 (1-4); 3 (1-4); 4 (1-2, 3, 4); 5 (1-2, 3-4); 6 (1-4); 7 (3-4); 8 (1-2, 3-4); 9 (1-4); 10 (1, 2, 3-4); 11 (1-4); 12 (1-4); 13 (1-6); 14 (1-6); 15 (1-6); 16 (1-4, 5-6, 7, 8); 17 (1, 2-3, 4-12); 18 (1-12); 19 (1-3, 5-12)
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Library of Congress
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Preserved
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2025-04-07
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21 (1 to 12); 22 (1 to 4-5, 6 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 5-8, 9 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 5-6, 7-8, 9 to 11)
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