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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 31 (1 to 6); 32 (, 1 to 7); 33 (, 1 to 7); 34 (, 1 to 7); 35 (, 1 to 6); 36 (, 1 to 3, 5, 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1 to 6); 45 (, 1 to 8); 46 (, 1 to 8); 47 (, 2 to 4, 6 to 8); 48 (, 1, 2, 4 to 8); 49 (, 1 to 8); 50 (, 1 to 4, 6, 7); 51 (, 1 to 8); 52 (, 3 to 8); 53 (, 1 to 8); 54 (, 2 to 8); 55 (, 1 to 8); 56 (, 1 to 8); 57 (, 1, 3 to 8); 58 (, 1 to 4); 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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CLOCKSS Archive
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Preserved
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2026-02-09
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31 to 59
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Portico
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Preserved
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2026-02-12
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Preserved : 1998: 31(1-6), 1999: 32(1, S 1, 2-6), 2000: 33(1-6), 2001: 34(1-6), 2002: 35(1-6), 2003: 36(1-6), 2004: 37(1-6), 2005: 38(1-6), 2006: 39(1-6), 2007: 40(1-6), 2008: 41(1-6), 2009: 42(1-6), 2010: 43(1-6), 2011: 44(1-6), 2012: 45(1-8), 2013: 46(1-8), 2014: 47(1-8), 2015: 48(1-8), 2016: 49(1-8), 2017: 50(1-8), 2018: 51(1-8), 2019: 52(1-3, S 3, S 4, 5-8), 2020: 53(1-8), 2021: 54(1, S 1, 2, S 2, 3-8), 2022: 55(1, S 1, 2-8), 2023: 56(1, S 1, 2, S 2, 3-8), 2024: 57(1, S 1, 2, S 2, 3-7), 2025: 58(1, S 1, 2, S 2, 3-8), 2026: 59(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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45, 52
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LOCKSS Archive
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Preserved
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2026-02-09
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46 to 51
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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 : 31 (2-4, 6); 32 (1-6); 33 (1-6); 34 (1, 2, 4-6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1, 3-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (supplement-2, 1, 2, 4-6); 45 (supplement-1, 1-8); 46 (1-8); 47 (1-8); 48 (1-8); 49 (1-8); 50 (supplement-2, 1-8); 51 (1-8); 52 (supplement-1, 1-7)
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Library of Congress
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Preserved
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2025-04-07
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50 (7); 51 (S1, 2 to 8); 52 (1, S1, S2, 2, 3, S3, S4, 4 to 8); 53 (1 to 8); 54 (1, S1, S2, 2 to 8); 55 (S1, 1 to 8); 56 (S1, 1, 2, S2, 3 to 8); 57 (1, S1, S2, 2 to 7)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 4 (2 to 6); 5 (Suppl 3, 1 to 8); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (Suppl 1, 1 to 6); 44 (Suppl 2, 1 to 6); 45 (Suppl 1, 1 to 8); 46 (Suppl 1, 1 to 8); 47 (Suppl 1, 1 to 8); 48 (Suppl 1, 1 to 8); 49 (Suppl 2, 1 to 8); 51 (Suppl 1, 1 to 8); 52 (Suppl 1, 1 to 8); 53 (1 to 8); 54 (Suppl 2, 1 to 8); 55 (Suppl 1, 1 to 8); 56 (Suppl 2, 1 to 8); 57 (Suppl 2, 1 to 8)
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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 (2 to 6); 5 (Suppl 3, 1 to 8); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (Suppl 1, 1 to 6); 44 (Suppl 2, 1 to 6); 45 (Suppl 1, 1 to 8); 46 (Suppl 1, 1 to 8); 47 (Suppl 1, 1 to 8); 48 (Suppl 1, 1 to 8); 49 (Suppl 2, 1 to 8); 51 (Suppl 1, 1 to 8); 52 (Suppl 1, 1 to 8); 53 (1 to 8); 54 (Suppl 2, 1 to 8); 55 (Suppl 1, 1 to 8); 56 (Suppl 2, 1 to 8); 57 (Suppl 2, 1 to 8)
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