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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 20; 21; 22; 23; 24; 25; 26 (2 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1, 2, 3-4); 32 (1-2, 3, 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 42 (1); 43 (2 to 4); 44 (1 to 4); 45 (1, 4); 46 (1 to 4); 47 (1 to 4); 48 (1, 2, 4); 49 (1 to 4); 50 (1 to 3); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4)
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Internet Archive
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Preserved
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2025-08-08
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1 to
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LOCKSS Archive
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Preserved
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2026-05-04
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20 to 57
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CLOCKSS Archive
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Preserved
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2026-05-04
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41 to 48, 50
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LOCKSS Archive
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In Progress
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2026-05-04
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58
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Portico
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Preserved
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2026-05-07
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Preserved : 1987: 20(1-4)
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Portico
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Preserved
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2026-05-07
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Preserved : 1993: 26(1-4), 1994: 27(1-4), 1995: 28(1-4), 1996: 29(1-4), 1997: 30(1-4), 1998: 31(1-4), 1999: 32(1-4), 2000: 33(1-4), 2001: 34(1-4), 2002: 35(1-4), 2003: 36(1-4), 2004: 37(1-4), 2005: 38(1-4), 2006: 39(1-4), 2007: 40(1-4), 2008: 41(1-4), 2009: 42(1-4), 2010: 43(1-4), 2011: 44(1-4), 2012: 45(1-4), 2013: 46(1-4), 2014: 47(1-4), 2015: 48(1-4), 2016: 49(1-4), 2017: 50(1-4), 2018: 51(1-4), 2019: 52(1-4), 2020: 53(1-4), 2021: 54(1-4), 2022: 55(1-4), 2023: 56(1-4), 2024: 57(1-4), 2025: 58(1-4), 2026: 59(1)
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CLOCKSS Archive
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Preserved
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2026-05-04
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ahead-of-print, 20 to 58
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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 (2 to 4); 4 (1, 2-3, 4); 5 (1 to 4); 31 (1, 2, 3-4); 32 (1-2, 3, 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1)
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Library of Congress
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Preserved
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2025-04-07
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43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4)
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