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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 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1); 12; 13; 14; 15 (2 to 6); 16 (supp1, 1 to 6); 17 (1 to 6); 18 (supp, 1 to 6); 19 (1); 20 (2 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 6); 25 (1 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 6); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 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 5, 7, 8); 44 (Supplement, 1 to 8); 45 (Supplement, 1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 6); 49 (1, 2, 6, 7); 50 (1 to 5, 7, 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 3, 5 to 7); 54 (3, 8); 55 (4, 6 to 8); 56 (1)
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Internet Archive
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Preserved
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2025-08-08
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1 to 43
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Portico
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Preserved
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2026-04-16
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Preserved : 2000: 30(4)
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Portico
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Preserved
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2026-04-16
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Preserved : 2002: 32(4-8), 2003: 33(1-2, 4-8), 2004: 34(1, 3-8), 2005: 35(1-8), 2006: 36(1-8), 2007: 37(1-8), 2006/2007/2008: 38(1-8), 2008/2009: 39(1-8), 2008/2009/2010: 40(1-8), 2010/2011: 41(1-8), 2011/2012: 42(1-8), 2011/2012/2013: 43(1-8), 2012/2014: 44(1-8), 2013/2014/2015: 45(1-8), 2014/2015/2016: 46(1-8), 2017: 47(1-8), 2018: 48(1-8), 2019: 49(1-8), 2020: 50(1-8), 2021: 51(1-8), 2022: 52(1-8), 2023: 53(1-8), 2024: 54(1-8), 2025: 55(1-8), 2026: 56(1)
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CLOCKSS Archive
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Preserved
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2026-04-13
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55, 56
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LOCKSS Archive
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Preserved
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2026-04-13
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35 to 54
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CLOCKSS Archive
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In Progress
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2026-04-13
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38, 49, 50, 52 to 55
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CLOCKSS Archive
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Preserved
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2026-04-13
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39 to 48, 51
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LOCKSS Archive
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In Progress
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2026-04-13
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55, 56
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British Library
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Preserved
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2019-09-18
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Preserved : 43 (2), 44 (1 to 3; 7 to 8), 45 (1 to 4; 6 to 8; S1), 46 (1 to 2; 4 to 8), 47 (1 to 2; 4; 6), 48 (4 to 6), 49 (2)
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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); 5 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1 to 8); 44 (suppl_1, 1 to 8); 45 (suppl_1, 1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 8); 54 (1 to 6); 55 (1 to 5)
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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); 5 (1 to 8); 36 (1 to 8); 37 (1 to 8); 38 (1 to 8); 39 (1 to 8); 41 (1 to 8); 42 (1 to 8); 43 (1 to 8); 44 (suppl_1, 1 to 8); 45 (suppl_1, 1 to 8); 46 (1 to 8); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (1 to 8); 54 (1 to 6); 55 (1 to 5)
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