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Portico
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Preserved
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2026-02-12
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Preserved : 2019: 51(1-2), 2021: 52(1-2), 2022: 53(1-2), 2023: 54(1-2), 2024: 55(1-2)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 39 (1, 2); 40 (, 1, 2); 41 (, 1, 2); 42 (, 1, 2); 43 (, 1, 2); 44 (, 1, 2); 45 (, 1, 2); 46 (, 1, 2); 47 (, 1, 2); 48 (, 1, 2); 49 (, 1, 2); 50 (, 1-2); 51 (, 1, 2); 52 (, 1, 2); 53 (, 1-2); 54 (, 1, 2); 55 (, 1, 2); 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2022; 2023; 2024
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LOCKSS Archive
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Preserved
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2026-02-09
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39 to 51
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CLOCKSS Archive
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Preserved
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2026-02-09
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39 to 56
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 29(1), 1998: 30(1), 1999: 31(1), 2000: 32(1), 2001: 33(1), 2002: 34(1), 2003: 35(1), 2004: 36(1), 2005: 37(1), 2006: 38(1-2), 2007: 39(1-2), 2008: 40(1-2), 2009: 41(1-2), 2010: 42(1-2), 2011: 43(1-2), 2012: 44(1-2), 2013: 45(1-2), 2014: 46(1-2), 2015: 47(1-2), 2016: 48(1-2), 2017: 49(1-2), 2018: 50(1-2), 2019: 51(1-2), 2021: 52(1-2), 2022: 53(1-2), 2023: 54(1-2), 2024: 55(1-2), 2025: 56(1)
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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, 2); 5 (1-2); 39 (2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 51 (1, 2); 52 (1, 2); 53 (1-2); 54 (2); 55 (1, 2)
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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, 2); 2 (1, 2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 8 (1-2); 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38 (2); 39 (1, 2); 40 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2); 46 (1, 2); 47 (1, 2); 48 (1, 2); 49 (1, 2); 50 (1-2); 51 (1, 2); 52 (1, 2); 53 (1-2); 54 (1, 2); 55 (1, 2)
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