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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1); 2 (2); 3 (1 to 3); 4 (1 to 3); 5 (1 to 3); 6 (1, 2); 7 (S1, 1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1 to 3); 11 (1 to 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 16 (1 to 3); 17 (1 to 3); 18 (1 to 3); 19 (1 to 3); 20 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1 to 3); 25 (1 to 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 30 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1, 2)
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Portico
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Preserved
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2026-05-07
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Preserved : 2001: 25(2-3), 2002: 26(1-3), 2003: 27(1-3), 2004: 28(1-3), 2005: 29(1-3), 2006: 30(1-3), 2007: 31(1-3), 2008: 32(1-3), 2009: 33(1-3), 2010: 34(1-3), 2011: 35(1-3), 2012: 36(1-3), 2013: 37(1-3), 2014: 38(1-3), 2015: 39(1-3), 2016: 40(1-3), 2017: 41(1-3), 2018: 42(1-3), 2019: 43(1, 2019), 2020: 44(1-3), 2021: 45(1-4), 2022: 46(1-4), 2023: 47(1-4), 2024: 48(1-4), 2025: 49(1-2)
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LOCKSS Archive
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Preserved
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2026-05-04
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1 to 48
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CLOCKSS Archive
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Preserved
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2026-05-04
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30 to 49
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LOCKSS Archive
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In Progress
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2026-05-04
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49
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Portico
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Preserved
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2026-05-07
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Preserved : 1981: 5(1)
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Portico
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Preserved
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2026-05-07
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Preserved : 1989: 13(2)
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Portico
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Preserved
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2026-05-07
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Preserved : 2001: 25(1-2)
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Portico
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Preserved
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2026-05-07
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Preserved : 2016: 40(1-3), 2017: 41(1-3), 2018: 42(1-3), 2019: 43(1-3), 2020: 44(1-3), 2021: 45(2-4), 2022: 46(1-4), 2023: 47(1-4), 2024: 48(1-4), 2025: 49(1-4)
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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 : 3 (1 to 3); 4 (1 to 3); 21 (1 to 3); 22 (1 to 3); 23 (1 to 3); 24 (1 to 3); 25 (2, 3); 26 (1 to 3); 27 (1 to 3); 28 (1 to 3); 29 (1 to 3); 31 (1 to 3); 32 (1 to 3); 33 (1 to 3); 34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4)
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Library of Congress
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Preserved
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2025-04-07
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34 (1 to 3); 35 (1 to 3); 36 (1 to 3); 37 (1 to 3); 38 (1 to 3); 39 (1 to 3); 40 (1 to 3); 41 (1 to 3); 42 (1 to 3); 43 (1 to 3); 44 (1 to 3); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4)
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