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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 25 (1 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 8); 29 (, 1 to 8); 30 (, 1 to 8); 31 (, 1 to 8); 32 (, 1 to 8); 33 (, 1 to 8); 34 (, 1 to 8); 35 (, 1 to 8); 36 (, 1 to 8); 37 (, 1 to 8); 38 (, 1 to 8); 39 (, 1 to 8); 40 (, 1 to 8); 41 (, 1 to 8); 42 (, 1 to 8); 43 (, 1 to 8); 44 (, 1 to 8); 45 (, 1 to 8); 46 (, 1 to 8); 47 (, 1 to 8); 48 (, 1 to 8); 49 (, 1 to 8); 50 (, 1 to 8); 51 (, 1 to 8); 52 (, 1 to 8); 53 (, 1 to 4); 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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Internet Archive
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Preserved
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2025-08-08
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1 to 42
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 54
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Portico
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Preserved
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2026-02-12
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Preserved : 1975: 3(5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1983: 11(3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 16(1, 5)
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 22(3), 1995: 23(1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 25(1-6), 1998: 26(1-6), 1999: 27(1-6), 2000: 28(1-8), 2001: 29(1-8), 2002: 30(1-8), 2003: 31(1-8), 2004: 32(1-8), 2005: 33(1-8), 2006: 34(1-8), 2007: 35(1-8), 2008: 36(1-8), 2009: 37(1-8), 2010: 38(1-8), 2011: 39(1-8), 2012: 40(1-6, 8), 2013: 41(1-8), 2014: 42(1-8), 2015: 43(3-8), 2016: 44(1-8), 2017: 45(1-8), 2018: 46(1-8), 2019: 47(1-8), 2020: 48(1-8), 2021: 49(1-8), 2022: 50(1-8), 2023: 51(1-8), 2024: 52(1-8), 2025: 53(1-8), 2026: 54(1)
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LOCKSS Archive
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In Progress
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2026-02-09
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40, 47
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LOCKSS Archive
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Preserved
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2026-02-09
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41 to 46
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Library of Congress
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Preserved
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2025-04-07
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46 (2 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 50 (1 to 8); 51 (1 to 8); 52 (1 to 6); 53 (1)
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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 (1 to 8); 41 (1 to 8); 51 (1 to 8); 52 (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 (1 to 8); 41 (1 to 8); 51 (1 to 8); 52 (1 to 8)
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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 : 27 (6); 29; 30 (3, 7); 33 (3); 35 (5); 36 (1-8); 37 (1-8); 38 (1-8); 39 (1-8); 40 (1-8); 41 (1-8); 42 (1-8); 43 (1-8); 44 (1-8); 45 (1-8); 46 (1-8); 47 (1-8); 228 (C)
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