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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1; 2 (2); 3 (1, 2); 4 (1, 2); 5 (1, 2); 6 (1, 2); 7 (1, 2); 13 (1, 2); 14 (1, 2); 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); 38 (1 to 4); 39 (1 to 5); 40 (1, 3 to 5); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 7); 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 8); 54 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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7 to 24
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Portico
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Preserved
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2026-04-09
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Preserved : 1997: 25(1-3), 1998: 26(1-3), 1999: 27(1-3), 2000: 28(1-3), 2001: 29(1-3), 2002: 30(1-3), 2003: 31(1-3), 2004: 32(1-3), 2005: 33(1-3), 2006: 34(1-3), 2007: 35(1-4), 2008: 36(1-4), 2009: 37(1-4), 2010: 38(1-4), 2011: 39(1-5), 2012: 40(1-5), 2013: 41(1-6), 2014: 42(1-6), 2015: 43(1-6), 2016: 44(1-6), 2017: 45(1-6), 2018: 46(1-7), 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(1-3)
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 52
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CLOCKSS Archive
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Preserved
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2026-04-06
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ahead-of-print to 54
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LOCKSS Archive
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In Progress
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2026-04-06
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53, 54
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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 5); 5 (1 to 8); 25 (1 to 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 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 5); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 7); 47 (1 to 8); 48 (1 to 8); 49 (1 to 8); 51 (1 to 8); 52 (1 to 8); 53 (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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38 (1 to 4); 39 (1 to 5); 40 (1 to 5); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 7); 47 (1 to 3, 5, 7, 8); 48 (1 to 8); 49 (1 to 8); 50 (1 to 8); 51 (1 to 8); 52 (1 to 8)
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