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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 28 (3); 35 (, 2 to 6); 36 (, 1 to 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 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1 to 6); 50 (, 1 to 6); 51 (, 1 to 6); 52 (, 1 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 56 (, 2, 3, 5, 6); 57 (, 6); 58 (, 1-2, 3, 4-5); 59 (, 1, 2, 4); 60 (, 4); 61 (, 1, 3); 62 (, 1, 3, 4); 63 (, 2); 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 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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35 to 64
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 35(2-6), 1998: 36(1-6), 1999: 37(1-6), 2000: 38(1-6), 2001: 39(1-6), 2002: 40(1-6), 2003: 41(1-6), 2004: 42(1-6), 2005: 43(1-6), 2006: 44(1-6), 2007: 45(1-6), 2008: 46(1-6), 2009: 47(1-6), 2010: 48(1-6), 2011: 49(1-6), 2012: 50(1-6), 2013: 51(1-6), 2014: 52(1-5), 2015: 53(1-6), 2016: 54(1-6), 2017: 55(1-6), 2018: 56(1-6), 2019: 57(1-6), 2020: 58(1-6), 2021: 59(1, S 1, 2-4), 2022: 60(1, S 1, 2-4), 2023: 61(1-4), 2024: 62(1-4), 2025: 63(1-4), 2026: 64(1, S 1)
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LOCKSS Archive
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In Progress
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2026-02-09
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50, 57
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LOCKSS Archive
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Preserved
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2026-02-09
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51 to 56
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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 : 35 (2-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-6); 45 (1-6); 46 (1-6); 47 (1-6); 48 (1-6); 49 (1-6); 50 (1-6); 51 (1-6); 52 (1-6); 53 (1-6); 54 (1-6); 55 (1-6); 56 (1-6); 57 (1-5)
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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 (1 to 6); 6 (Suppl 1, 1 to 4); 35 (2 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 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1-2, 3, 4-5, 6); 59 (Suppl 1, 1 to 4); 61 (1 to 4); 62 (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 : 4 (2 to 6); 5 (1 to 6); 6 (Suppl 1, 1 to 4); 35 (2 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 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1-2, 3, 4-5, 6); 59 (Suppl 1, 1 to 4); 61 (1 to 4); 62 (1 to 4)
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